2656928144568 has 64 divisors (see below), whose sum is σ = 6681925008000. Its totient is φ = 880365796992.

The previous prime is 2656928144561. The next prime is 2656928144579. The reversal of 2656928144568 is 8654418296562.

It is a junction number, because it is equal to n+sod(n) for n = 2656928144499 and 2656928144508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656928144561) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11515038 + ... + 11743506.

It is an arithmetic number, because the mean of its divisors is an integer number (104405078250).

Almost surely, 2^{2656928144568} is an apocalyptic number.

It is an amenable number.

2656928144568 is an abundant number, since it is smaller than the sum of its proper divisors (4024996863432).

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

2656928144568 is a wasteful number, since it uses less digits than its factorization.

2656928144568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231364 (or 231360 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 66.

The spelling of 2656928144568 in words is "two trillion, six hundred fifty-six billion, nine hundred twenty-eight million, one hundred forty-four thousand, five hundred sixty-eight".