616980590640 has 120 divisors (see below), whose sum is σ = 2193910437888. Its totient is φ = 154850027520.

The previous prime is 616980590599. The next prime is 616980590671. The reversal of 616980590640 is 46095089616.

It is a happy number.

616980590640 is a `hidden beast` number, since 6 + 1 + 6 + 9 + 8 + 0 + 590 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25191216 + ... + 25215695.

Almost surely, 2^616980590640 is an apocalyptic number.

616980590640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616980590640 is an abundant number, since it is smaller than the sum of its proper divisors (1576929847248).

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

616980590640 is a wasteful number, since it uses less digits than its factorization.

616980590640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50406947 (or 50406938 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 616980590640 in words is "six hundred sixteen billion, nine hundred eighty million, five hundred ninety thousand, six hundred forty".