161594103600 has 240 divisors, whose sum is σ = 589185102240. Its totient is φ = 42040627200.

The previous prime is 161594103571. The next prime is 161594103617. The reversal of 161594103600 is 6301495161.

161594103600 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 9 + 41 + 0 + 3 + 600 = 666.

161594103600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×161594103600² (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 47 ways as a sum of consecutive naturals, for example, 260332 + ... + 625268.

It is an arithmetic number, because the mean of its divisors is an integer number (2454937926).

Almost surely, 2^161594103600 is an apocalyptic number.

161594103600 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 161594103600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294592551120).

161594103600 is an abundant number, since it is smaller than the sum of its proper divisors (427590998640).

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

161594103600 is a wasteful number, since it uses less digits than its factorization.

161594103600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365005 (or 364988 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

Adding to 161594103600 its reverse (6301495161), we get a palindrome (167895598761).

The spelling of 161594103600 in words is "one hundred sixty-one billion, five hundred ninety-four million, one hundred three thousand, six hundred".