256135132514 has 16 divisors (see below), whose sum is σ = 393611551200. Its totient is φ = 124931886240.

The previous prime is 256135132501. The next prime is 256135132523. The reversal of 256135132514 is 415231531652.

It is a super-2 number, since 2×256135132514² (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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733637 + ... + 1024935.

It is an arithmetic number, because the mean of its divisors is an integer number (24600721950).

Almost surely, 2^256135132514 is an apocalyptic number.

256135132514 is a deficient number, since it is larger than the sum of its proper divisors (137476418686).

256135132514 is a wasteful number, since it uses less digits than its factorization.

256135132514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302065.

The product of its digits is 108000, while the sum is 38.

The spelling of 256135132514 in words is "two hundred fifty-six billion, one hundred thirty-five million, one hundred thirty-two thousand, five hundred fourteen".