51200617164 has 24 divisors (see below), whose sum is σ = 119829046848. Its totient is φ = 17015309520.

The previous prime is 51200617129. The next prime is 51200617207. The reversal of 51200617164 is 46171600215.

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, 6441222 + ... + 6449165.

It is an arithmetic number, because the mean of its divisors is an integer number (4992876952).

Almost surely, 2^51200617164 is an apocalyptic number.

It is an amenable number.

51200617164 is an abundant number, since it is smaller than the sum of its proper divisors (68628429684).

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

51200617164 is a wasteful number, since it uses less digits than its factorization.

51200617164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12890725 (or 12890723 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 51200617164 in words is "fifty-one billion, two hundred million, six hundred seventeen thousand, one hundred sixty-four".