161453433600 has 1296 divisors, whose sum is σ = 651278003040. Its totient is φ = 39105331200.

The previous prime is 161453433593. The next prime is 161453433637. The reversal of 161453433600 is 6334354161.

161453433600 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 5 + 3 + 43 + 3 + 600 = 666.

161453433600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161453433600² (a number of 23 digits) contains 22 as substring.

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

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 143 ways as a sum of consecutive naturals, for example, 2646777570 + ... + 2646777630.

Almost surely, 2^161453433600 is an apocalyptic number.

161453433600 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 161453433600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325639001520).

161453433600 is an abundant number, since it is smaller than the sum of its proper divisors (489824569440).

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

161453433600 is a wasteful number, since it uses less digits than its factorization.

161453433600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 161453433600 its reverse (6334354161), we get a palindrome (167787787761).

The spelling of 161453433600 in words is "one hundred sixty-one billion, four hundred fifty-three million, four hundred thirty-three thousand, six hundred".