616312616 has 16 divisors (see below), whose sum is σ = 1157349600. Its totient is φ = 307686064.

The previous prime is 616312607. The next prime is 616312621. The reversal of 616312616 is 616213616.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53180 + ... + 63723.

It is an arithmetic number, because the mean of its divisors is an integer number (72334350).

Almost surely, 2^616312616 is an apocalyptic number.

It is an amenable number.

616312616 is a deficient number, since it is larger than the sum of its proper divisors (541036984).

616312616 is a wasteful number, since it uses less digits than its factorization.

616312616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117568 (or 117564 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 616312616 is about 24825.6443219506. The cubic root of 616312616 is about 851.0080846952.

The spelling of 616312616 in words is "six hundred sixteen million, three hundred twelve thousand, six hundred sixteen".