168655225904 has 80 divisors (see below), whose sum is σ = 357803825280. Its totient is φ = 76376494080.

The previous prime is 168655225889. The next prime is 168655225919. The reversal of 168655225904 is 409522556861.

It is an interprime number because it is at equal distance from previous prime (168655225889) and next prime (168655225919).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62859347 + ... + 62862029.

It is an arithmetic number, because the mean of its divisors is an integer number (4472547816).

Almost surely, 2^168655225904 is an apocalyptic number.

It is an amenable number.

168655225904 is an abundant number, since it is smaller than the sum of its proper divisors (189148599376).

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

168655225904 is a wasteful number, since it uses less digits than its factorization.

168655225904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898 (or 3892 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 53.

The spelling of 168655225904 in words is "one hundred sixty-eight billion, six hundred fifty-five million, two hundred twenty-five thousand, nine hundred four".