2156657626008 has 24 divisors (see below), whose sum is σ = 5840947737300. Its totient is φ = 718885875312.

The previous prime is 2156657626001. The next prime is 2156657626073. The reversal of 2156657626008 is 8006267566512.

2156657626008 is a `hidden beast` number, since 2 + 1 + 5 + 6 + 6 + 5 + 7 + 626 + 0 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156657626001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14976788998 + ... + 14976789141.

Almost surely, 2^{2156657626008} is an apocalyptic number.

It is an amenable number.

2156657626008 is an abundant number, since it is smaller than the sum of its proper divisors (3684290111292).

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

2156657626008 is a wasteful number, since it uses less digits than its factorization.

2156657626008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29953578151 (or 29953578144 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 2156657626008 in words is "two trillion, one hundred fifty-six billion, six hundred fifty-seven million, six hundred twenty-six thousand, eight".