616772616 has 64 divisors (see below), whose sum is σ = 1561697280. Its totient is φ = 202974720.

The previous prime is 616772599. The next prime is 616772641. The reversal of 616772616 is 616277616.

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, 719260 + ... + 720116.

It is an arithmetic number, because the mean of its divisors is an integer number (24401520).

Almost surely, 2^616772616 is an apocalyptic number.

It is an amenable number.

616772616 is an abundant number, since it is smaller than the sum of its proper divisors (944924664).

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

616772616 is a wasteful number, since it uses less digits than its factorization.

616772616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1210 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 616772616 is about 24834.9072073966. The cubic root of 616772616 is about 851.2197556105.

The spelling of 616772616 in words is "six hundred sixteen million, seven hundred seventy-two thousand, six hundred sixteen".