51556124791616 has 56 divisors (see below), whose sum is σ = 102720361512384. Its totient is φ = 25673841152000.

The previous prime is 51556124791597. The next prime is 51556124791621. The reversal of 51556124791616 is 61619742165515.

It is a congruent number.

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, 301001936 + ... + 301173168.

It is an arithmetic number, because the mean of its divisors is an integer number (1834292169864).

Almost surely, 2^{51556124791616} is an apocalyptic number.

It is an amenable number.

51556124791616 is a deficient number, since it is larger than the sum of its proper divisors (51164236720768).

51556124791616 is a wasteful number, since it uses less digits than its factorization.

51556124791616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190239 (or 190229 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 59.

The spelling of 51556124791616 in words is "fifty-one trillion, five hundred fifty-six billion, one hundred twenty-four million, seven hundred ninety-one thousand, six hundred sixteen".