51513350160 has 40 divisors (see below), whose sum is σ = 159691386240. Its totient is φ = 13736893312.

The previous prime is 51513350131. The next prime is 51513350197. The reversal of 51513350160 is 6105331515.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 107319240 + ... + 107319719.

It is an arithmetic number, because the mean of its divisors is an integer number (3992284656).

Almost surely, 2^51513350160 is an apocalyptic number.

It is an amenable number.

51513350160 is an abundant number, since it is smaller than the sum of its proper divisors (108178036080).

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

51513350160 is a wasteful number, since it uses less digits than its factorization.

51513350160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214638975 (or 214638969 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 30.

Adding to 51513350160 its reverse (6105331515), we get a palindrome (57618681675).

The spelling of 51513350160 in words is "fifty-one billion, five hundred thirteen million, three hundred fifty thousand, one hundred sixty".