256118063130 has 64 divisors (see below), whose sum is σ = 683688487680. Its totient is φ = 68227451712.

The previous prime is 256118063129. The next prime is 256118063141. The reversal of 256118063130 is 31360811652.

256118063130 is a `hidden beast` number, since 2 + 5 + 6 + 1 + 18 + 0 + 631 + 3 + 0 = 666.

It is a super-2 number, since 2×256118063130² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229389 + ... + 751568.

It is an arithmetic number, because the mean of its divisors is an integer number (10682632620).

Almost surely, 2^256118063130 is an apocalyptic number.

256118063130 is an abundant number, since it is smaller than the sum of its proper divisors (427570424550).

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

256118063130 is a wasteful number, since it uses less digits than its factorization.

256118063130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981940 (or 981934 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 256118063130 its reverse (31360811652), we get a palindrome (287478874782).

The spelling of 256118063130 in words is "two hundred fifty-six billion, one hundred eighteen million, sixty-three thousand, one hundred thirty".