168626464656 has 160 divisors (see below), whose sum is σ = 485987561472. Its totient is φ = 50032304640.

The previous prime is 168626464639. The next prime is 168626464673. The reversal of 168626464656 is 656464626861.

168626464656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168626464639) and next prime (168626464673).

It is a self number, because there is not a number n which added to its sum of digits gives 168626464656.

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 31 ways as a sum of consecutive naturals, for example, 5458951 + ... + 5489753.

Almost surely, 2^168626464656 is an apocalyptic number.

168626464656 is a gapful number since it is divisible by the number (16) 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 168626464656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242993780736).

168626464656 is an abundant number, since it is smaller than the sum of its proper divisors (317361096816).

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

168626464656 is a wasteful number, since it uses less digits than its factorization.

168626464656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31141 (or 31135 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 60.

The spelling of 168626464656 in words is "one hundred sixty-eight billion, six hundred twenty-six million, four hundred sixty-four thousand, six hundred fifty-six".