51610605064 has 16 divisors (see below), whose sum is σ = 97228512720. Its totient is φ = 25683001680.

The previous prime is 51610605061. The next prime is 51610605083. The reversal of 51610605064 is 46050601615.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51610605061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15285814 + ... + 15289189.

It is an arithmetic number, because the mean of its divisors is an integer number (6076782045).

Almost surely, 2^51610605064 is an apocalyptic number.

It is an amenable number.

51610605064 is a deficient number, since it is larger than the sum of its proper divisors (45617907656).

51610605064 is a wasteful number, since it uses less digits than its factorization.

51610605064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30575220 (or 30575216 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 51610605064 in words is "fifty-one billion, six hundred ten million, six hundred five thousand, sixty-four".