51156665162 has 16 divisors (see below), whose sum is σ = 77326747200. Its totient is φ = 25381449600.

The previous prime is 51156665107. The next prime is 51156665213. The reversal of 51156665162 is 26156665115.

It is a happy number.

51156665162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189389 + ... + 371727.

It is an arithmetic number, because the mean of its divisors is an integer number (4832921700).

Almost surely, 2^51156665162 is an apocalyptic number.

51156665162 is a deficient number, since it is larger than the sum of its proper divisors (26170082038).

51156665162 is a wasteful number, since it uses less digits than its factorization.

51156665162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183421.

The product of its digits is 324000, while the sum is 44.

The spelling of 51156665162 in words is "fifty-one billion, one hundred fifty-six million, six hundred sixty-five thousand, one hundred sixty-two".