168618697056 has 48 divisors (see below), whose sum is σ = 491804535600. Its totient is φ = 56206232064.

The previous prime is 168618697043. The next prime is 168618697127. The reversal of 168618697056 is 650796816861.

168618697056 is a `hidden beast` number, since 1 + 6 + 8 + 618 + 6 + 9 + 7 + 0 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 168618696984 and 168618697002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97579401 + ... + 97581128.

It is an arithmetic number, because the mean of its divisors is an integer number (10245927825).

Almost surely, 2^168618697056 is an apocalyptic number.

168618697056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168618697056 is an abundant number, since it is smaller than the sum of its proper divisors (323185838544).

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

168618697056 is a wasteful number, since it uses less digits than its factorization.

168618697056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195160548 (or 195160534 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 168618697056 in words is "one hundred sixty-eight billion, six hundred eighteen million, six hundred ninety-seven thousand, fifty-six".