616605072 has 20 divisors (see below), whose sum is σ = 1592896560. Its totient is φ = 205535008.

The previous prime is 616605013. The next prime is 616605107. The reversal of 616605072 is 270506616.

It is a super-2 number, since 2×616605072² = 760403629632250368, which contains 22 as substring.

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, 6422922 + ... + 6423017.

It is an arithmetic number, because the mean of its divisors is an integer number (79644828).

Almost surely, 2^616605072 is an apocalyptic number.

It is an amenable number.

616605072 is an abundant number, since it is smaller than the sum of its proper divisors (976291488).

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

616605072 is a wasteful number, since it uses less digits than its factorization.

616605072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12845950 (or 12845944 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 616605072 is about 24831.5338229438. The cubic root of 616605072 is about 851.1426717307.

The spelling of 616605072 in words is "six hundred sixteen million, six hundred five thousand, seventy-two".