616504405616 has 40 divisors (see below), whose sum is σ = 1315967812848. Its totient is φ = 277454720000.

The previous prime is 616504405523. The next prime is 616504405639.

616504405616 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17323145 + ... + 17358696.

Almost surely, 2^616504405616 is an apocalyptic number.

It is an amenable number.

616504405616 is an abundant number, since it is smaller than the sum of its proper divisors (699463407232).

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

616504405616 is a wasteful number, since it uses less digits than its factorization.

616504405616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34681961 (or 34681955 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 616504405616 in words is "six hundred sixteen billion, five hundred four million, four hundred five thousand, six hundred sixteen".