51222767522664 has 16 divisors (see below), whose sum is σ = 128056918806720. Its totient is φ = 17074255840880.

The previous prime is 51222767522629. The next prime is 51222767522711. The reversal of 51222767522664 is 46622576722215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067140990032 + ... + 1067140990079.

It is an arithmetic number, because the mean of its divisors is an integer number (8003557425420).

Almost surely, 2^{51222767522664} is an apocalyptic number.

It is an amenable number.

51222767522664 is an abundant number, since it is smaller than the sum of its proper divisors (76834151284056).

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

51222767522664 is a wasteful number, since it uses less digits than its factorization.

51222767522664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134281980120 (or 2134281980116 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 57.

The spelling of 51222767522664 in words is "fifty-one trillion, two hundred twenty-two billion, seven hundred sixty-seven million, five hundred twenty-two thousand, six hundred sixty-four".