515116206660 has 96 divisors (see below), whose sum is σ = 1588722250752. Its totient is φ = 123664245120.

The previous prime is 515116206581. The next prime is 515116206697. The reversal of 515116206660 is 66602611515.

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, 3720754 + ... + 3856713.

It is an arithmetic number, because the mean of its divisors is an integer number (16549190112).

Almost surely, 2^515116206660 is an apocalyptic number.

It is an amenable number.

515116206660 is an abundant number, since it is smaller than the sum of its proper divisors (1073606044092).

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

515116206660 is a wasteful number, since it uses less digits than its factorization.

515116206660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577593 (or 7577591 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 515116206660 in words is "five hundred fifteen billion, one hundred sixteen million, two hundred six thousand, six hundred sixty".