5121635165256 has 64 divisors (see below), whose sum is σ = 12924332524800. Its totient is φ = 1691180541248.

The previous prime is 5121635165173. The next prime is 5121635165281. The reversal of 5121635165256 is 6525615361215.

It is a super-2 number, since 2×5121635165256² (a number of 26 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 106812535 + ... + 106860473.

It is an arithmetic number, because the mean of its divisors is an integer number (201942695700).

Almost surely, 2^{5121635165256} is an apocalyptic number.

It is an amenable number.

5121635165256 is an abundant number, since it is smaller than the sum of its proper divisors (7802697359544).

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

5121635165256 is a wasteful number, since it uses less digits than its factorization.

5121635165256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89658 (or 89654 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 48.

The spelling of 5121635165256 in words is "five trillion, one hundred twenty-one billion, six hundred thirty-five million, one hundred sixty-five thousand, two hundred fifty-six".