616566614636 has 48 divisors (see below), whose sum is σ = 1255352878080. Its totient is φ = 259490904960.

The previous prime is 616566614621. The next prime is 616566614641. The reversal of 616566614636 is 636416665616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1378541 + ... + 1770171.

It is an arithmetic number, because the mean of its divisors is an integer number (26153184960).

Almost surely, 2^616566614636 is an apocalyptic number.

It is an amenable number.

616566614636 is an abundant number, since it is smaller than the sum of its proper divisors (638786263444).

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

616566614636 is a wasteful number, since it uses less digits than its factorization.

616566614636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392654 (or 392652 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 56.

The spelling of 616566614636 in words is "six hundred sixteen billion, five hundred sixty-six million, six hundred fourteen thousand, six hundred thirty-six".