51510150516 has 96 divisors (see below), whose sum is σ = 132139123200. Its totient is φ = 15487822720.

The previous prime is 51510150487. The next prime is 51510150553. The reversal of 51510150516 is 61505101515.

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, 12024511 + ... + 12028793.

It is an arithmetic number, because the mean of its divisors is an integer number (1376449200).

Almost surely, 2^51510150516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51510150516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66069561600).

51510150516 is an abundant number, since it is smaller than the sum of its proper divisors (80628972684).

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

51510150516 is a wasteful number, since it uses less digits than its factorization.

51510150516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989 (or 4987 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 51510150516 in words is "fifty-one billion, five hundred ten million, one hundred fifty thousand, five hundred sixteen".