51559816896 has 112 divisors (see below), whose sum is σ = 173230113280. Its totient is φ = 14731372800.

The previous prime is 51559816883. The next prime is 51559816901. The reversal of 51559816896 is 69861895515.

51559816896 is a `hidden beast` number, since 515 + 59 + 8 + 1 + 68 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2119180 + ... + 2143371.

It is an arithmetic number, because the mean of its divisors is an integer number (1546697440).

Almost surely, 2^51559816896 is an apocalyptic number.

51559816896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51559816896 is an abundant number, since it is smaller than the sum of its proper divisors (121670296384).

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

51559816896 is a wasteful number, since it uses less digits than its factorization.

51559816896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262579 (or 4262563 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 63.

The spelling of 51559816896 in words is "fifty-one billion, five hundred fifty-nine million, eight hundred sixteen thousand, eight hundred ninety-six".