616665160 has 64 divisors (see below), whose sum is σ = 1407067200. Its totient is φ = 243215616.

The previous prime is 616665139. The next prime is 616665187. The reversal of 616665160 is 61566616.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095039 + ... + 1095601.

It is an arithmetic number, because the mean of its divisors is an integer number (21985425).

Almost surely, 2^616665160 is an apocalyptic number.

It is an amenable number.

616665160 is an abundant number, since it is smaller than the sum of its proper divisors (790402040).

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

616665160 is a wasteful number, since it uses less digits than its factorization.

616665160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 616665160 is about 24832.7437066467. The cubic root of 616665160 is about 851.1703187082.

The spelling of 616665160 in words is "six hundred sixteen million, six hundred sixty-five thousand, one hundred sixty".