2056660520013 has 192 divisors, whose sum is σ = 3670304901120. Its totient is φ = 1093541990400.

The previous prime is 2056660519999. The next prime is 2056660520059. The reversal of 2056660520013 is 3100250666502.

It is a happy number.

It is not a de Polignac number, because 2056660520013 - 2⁴ = 2056660519997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2056660520013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056660520813) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1332896520 + ... + 1332898062.

It is an arithmetic number, because the mean of its divisors is an integer number (19116171360).

Almost surely, 2^{2056660520013} is an apocalyptic number.

It is an amenable number.

2056660520013 is a deficient number, since it is larger than the sum of its proper divisors (1613644381107).

2056660520013 is a wasteful number, since it uses less digits than its factorization.

2056660520013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 2056660520013 in words is "two trillion, fifty-six billion, six hundred sixty million, five hundred twenty thousand, thirteen".