51366332508 has 96 divisors (see below), whose sum is σ = 125642711040. Its totient is φ = 16313814720.

The previous prime is 51366332491. The next prime is 51366332533. The reversal of 51366332508 is 80523366315.

51366332508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51366332508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9476223 + ... + 9481641.

It is an arithmetic number, because the mean of its divisors is an integer number (1308778240).

Almost surely, 2^51366332508 is an apocalyptic number.

It is an amenable number.

51366332508 is an abundant number, since it is smaller than the sum of its proper divisors (74276378532).

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

51366332508 is a wasteful number, since it uses less digits than its factorization.

51366332508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5847 (or 5845 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 51366332508 in words is "fifty-one billion, three hundred sixty-six million, three hundred thirty-two thousand, five hundred eight".