616063043640 has 64 divisors (see below), whose sum is σ = 2016206328960. Its totient is φ = 149348616320.

The previous prime is 616063043621. The next prime is 616063043653. The reversal of 616063043640 is 46340360616.

It is a congruent number.

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, 233355894 + ... + 233358533.

It is an arithmetic number, because the mean of its divisors is an integer number (31503223890).

Almost surely, 2^616063043640 is an apocalyptic number.

616063043640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616063043640 is an abundant number, since it is smaller than the sum of its proper divisors (1400143285320).

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

616063043640 is a wasteful number, since it uses less digits than its factorization.

616063043640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466714452 (or 466714448 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 616063043640 in words is "six hundred sixteen billion, sixty-three million, forty-three thousand, six hundred forty".