168135690600 has 96 divisors (see below), whose sum is σ = 579134064000. Its totient is φ = 44836182720.

The previous prime is 168135690521. The next prime is 168135690629. The reversal of 168135690600 is 6096531861.

168135690600 is a `hidden beast` number, since 1 + 6 + 8 + 1 + 35 + 6 + 9 + 0 + 600 = 666.

It is a super-2 number, since 2×168135690600² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15562720 + ... + 15573519.

It is an arithmetic number, because the mean of its divisors is an integer number (6032646500).

Almost surely, 2^168135690600 is an apocalyptic number.

168135690600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168135690600 is an abundant number, since it is smaller than the sum of its proper divisors (410998373400).

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

168135690600 is a wasteful number, since it uses less digits than its factorization.

168135690600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31136264 (or 31136249 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 168135690600 in words is "one hundred sixty-eight billion, one hundred thirty-five million, six hundred ninety thousand, six hundred".