161592499200 has 396 divisors, whose sum is σ = 587071166360. Its totient is φ = 39171686400.

The previous prime is 161592499199. The next prime is 161592499217. The reversal of 161592499200 is 2994295161.

It is a super-2 number, since 2×161592499200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 161592499200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9284106 + ... + 9301494.

Almost surely, 2^161592499200 is an apocalyptic number.

161592499200 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 161592499200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293535583180).

161592499200 is an abundant number, since it is smaller than the sum of its proper divisors (425478667160).

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

161592499200 is a wasteful number, since it uses less digits than its factorization.

161592499200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17444 (or 17410 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 161592499200 in words is "one hundred sixty-one billion, five hundred ninety-two million, four hundred ninety-nine thousand, two hundred".