56151155515 has 32 divisors (see below), whose sum is σ = 83084593536. Its totient is φ = 35475978240.

The previous prime is 56151155509. The next prime is 56151155549. The reversal of 56151155515 is 51555115165.

It is a happy number.

It is not a de Polignac number, because 56151155515 - 2⁵ = 56151155483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132099 + ... + 360211.

It is an arithmetic number, because the mean of its divisors is an integer number (2596393548).

Almost surely, 2^56151155515 is an apocalyptic number.

56151155515 is a deficient number, since it is larger than the sum of its proper divisors (26933438021).

56151155515 is a wasteful number, since it uses less digits than its factorization.

56151155515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228679.

The product of its digits is 93750, while the sum is 40.

The spelling of 56151155515 in words is "fifty-six billion, one hundred fifty-one million, one hundred fifty-five thousand, five hundred fifteen".