51506583160 has 32 divisors (see below), whose sum is σ = 116140155840. Its totient is φ = 20558127744.

The previous prime is 51506583151. The next prime is 51506583197. The reversal of 51506583160 is 6138560515.

51506583160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372047 + ... + 1409086.

It is an arithmetic number, because the mean of its divisors is an integer number (3629379870).

Almost surely, 2^51506583160 is an apocalyptic number.

It is an amenable number.

51506583160 is an abundant number, since it is smaller than the sum of its proper divisors (64633572680).

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

51506583160 is a wasteful number, since it uses less digits than its factorization.

51506583160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781607 (or 2781603 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 51506583160 in words is "fifty-one billion, five hundred six million, five hundred eighty-three thousand, one hundred sixty".