51515001116 has 48 divisors (see below), whose sum is σ = 92559075840. Its totient is φ = 25079880000.

The previous prime is 51515001103. The next prime is 51515001119. The reversal of 51515001116 is 61110051515.

51515001116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51515001119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12590231 + ... + 12594321.

It is an arithmetic number, because the mean of its divisors is an integer number (1928314080).

Almost surely, 2^51515001116 is an apocalyptic number.

It is an amenable number.

51515001116 is a deficient number, since it is larger than the sum of its proper divisors (41044074724).

51515001116 is a wasteful number, since it uses less digits than its factorization.

51515001116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706 (or 4704 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 51515001116 in words is "fifty-one billion, five hundred fifteen million, one thousand, one hundred sixteen".