616626656 has 24 divisors (see below), whose sum is σ = 1223550720. Its totient is φ = 305883648.

The previous prime is 616626643. The next prime is 616626667. The reversal of 616626656 is 656626616.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71801 + ... + 79928.

It is an arithmetic number, because the mean of its divisors is an integer number (50981280).

Almost surely, 2^616626656 is an apocalyptic number.

It is an amenable number.

616626656 is a deficient number, since it is larger than the sum of its proper divisors (606924064).

616626656 is a wasteful number, since it uses less digits than its factorization.

616626656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151866 (or 151858 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The square root of 616626656 is about 24831.9684278150. The cubic root of 616626656 is about 851.1526029114.

The spelling of 616626656 in words is "six hundred sixteen million, six hundred twenty-six thousand, six hundred fifty-six".