51664875520888 has 48 divisors (see below), whose sum is σ = 112715545889520. Its totient is φ = 22136562983808.

The previous prime is 51664875520871. The next prime is 51664875520913. The reversal of 51664875520888 is 88802557846615.

It is a self number, because there is not a number n which added to its sum of digits gives 51664875520888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14875245 + ... + 18016732.

It is an arithmetic number, because the mean of its divisors is an integer number (2348240539365).

Almost surely, 2^{51664875520888} is an apocalyptic number.

It is an amenable number.

51664875520888 is an abundant number, since it is smaller than the sum of its proper divisors (61050670368632).

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

51664875520888 is a wasteful number, since it uses less digits than its factorization.

51664875520888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32896004 (or 32895993 counting only the distinct ones).

The product of its (nonzero) digits is 1032192000, while the sum is 73.

The spelling of 51664875520888 in words is "fifty-one trillion, six hundred sixty-four billion, eight hundred seventy-five million, five hundred twenty thousand, eight hundred eighty-eight".