51615005151560 has 32 divisors (see below), whose sum is σ = 116134298191800. Its totient is φ = 20645906664960.

The previous prime is 51615005151529. The next prime is 51615005151583. The reversal of 51615005151560 is 6515150051615.

It can be written as a sum of positive squares in 4 ways, for example, as 48492087067876 + 3122918083684 = 6963626^2 + 1767178^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6127700 + ... + 11865020.

Almost surely, 2^{51615005151560} is an apocalyptic number.

It is an amenable number.

51615005151560 is an abundant number, since it is smaller than the sum of its proper divisors (64519293040240).

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

51615005151560 is a wasteful number, since it uses less digits than its factorization.

51615005151560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5962241 (or 5962237 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 51615005151560 in words is "fifty-one trillion, six hundred fifteen billion, five million, one hundred fifty-one thousand, five hundred sixty".