51662799504 has 60 divisors (see below), whose sum is σ = 144604964556. Its totient is φ = 17218446336.

The previous prime is 51662799491. The next prime is 51662799511. The reversal of 51662799504 is 40599726615.

51662799504 is a `hidden beast` number, since 5 + 1 + 6 + 62 + 79 + 9 + 504 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11521875600 + 40140923904 = 107340^2 + 200352^2 .

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, 1163764 + ... + 1207340.

Almost surely, 2^51662799504 is an apocalyptic number.

It is an amenable number.

51662799504 is an abundant number, since it is smaller than the sum of its proper divisors (92942165052).

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

51662799504 is a wasteful number, since it uses less digits than its factorization.

51662799504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51824 (or 51815 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 51662799504 in words is "fifty-one billion, six hundred sixty-two million, seven hundred ninety-nine thousand, five hundred four".