2656364013 has 6 divisors (see below), whose sum is σ = 3836970254. Its totient is φ = 1770909336.

The previous prime is 2656364003. The next prime is 2656364057. The reversal of 2656364013 is 3104636562.

2656364013 is a `hidden beast` number, since 2 + 6 + 5 + 6 + 3 + 640 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2652971049 + 3392964 = 51507^2 + 1842^2 .

It is not a de Polignac number, because 2656364013 - 2⁵ = 2656363981 is a prime.

It is a super-2 number, since 2×2656364013² = 14112539539122928338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656364003) 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 5 ways as a sum of consecutive naturals, for example, 147575770 + ... + 147575787.

Almost surely, 2^2656364013 is an apocalyptic number.

It is an amenable number.

2656364013 is a deficient number, since it is larger than the sum of its proper divisors (1180606241).

2656364013 is a wasteful number, since it uses less digits than its factorization.

2656364013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295151563 (or 295151560 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 2656364013 is about 51539.9263969207. The cubic root of 2656364013 is about 1384.9343785893.

The spelling of 2656364013 in words is "two billion, six hundred fifty-six million, three hundred sixty-four thousand, thirteen".