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161060428800 = 21032523492003
BaseRepresentation
bin1001010111111111110…
…0110001110000000000
3120101201120121111211200
42111333330301300000
510114322432210200
6201553511541200
714431141025235
oct2257774616000
9511646544750
10161060428800
116233a45aaa7
122726a98a800
1312259b73c9b
147b1c6b178c
1542c9b08800
hex257ff31c00

161060428800 has 396 divisors, whose sum is σ = 578613617400. Its totient is φ = 42805002240.

The previous prime is 161060428783. The next prime is 161060428813. The reversal of 161060428800 is 8824060161.

161060428800 is a `hidden beast` number, since 16 + 10 + 604 + 28 + 8 + 0 + 0 = 666.

161060428800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 80408599 + ... + 80410601.

Almost surely, 2161060428800 is an apocalyptic number.

161060428800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161060428800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289306808700).

161060428800 is an abundant number, since it is smaller than the sum of its proper divisors (417553188600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161060428800 is a wasteful number, since it uses less digits than its factorization.

161060428800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2362 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

Adding to 161060428800 its reverse (8824060161), we get a palindrome (169884488961).

The spelling of 161060428800 in words is "one hundred sixty-one billion, sixty million, four hundred twenty-eight thousand, eight hundred".