51330564445650 has 96 divisors (see below), whose sum is σ = 151810941477888. Its totient is φ = 11222583028800.

The previous prime is 51330564445603. The next prime is 51330564445661. The reversal of 51330564445650 is 5654446503315.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51330564445593 and 51330564445602.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1062720456 + ... + 1062768755.

It is an arithmetic number, because the mean of its divisors is an integer number (1581363973728).

Almost surely, 2^{51330564445650} is an apocalyptic number.

51330564445650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51330564445650 is an abundant number, since it is smaller than the sum of its proper divisors (100480377032238).

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

51330564445650 is a wasteful number, since it uses less digits than its factorization.

51330564445650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125489256 (or 2125489251 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 51.

The spelling of 51330564445650 in words is "fifty-one trillion, three hundred thirty billion, five hundred sixty-four million, four hundred forty-five thousand, six hundred fifty".