616546645616 has 20 divisors (see below), whose sum is σ = 1303155410424. Its totient is φ = 280248475200.

The previous prime is 616546645591. The next prime is 616546645621.

616546645616 is nontrivially palindromic in base 10.

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 3 ways as a sum of consecutive naturals, for example, 1751552795 + ... + 1751553146.

Almost surely, 2^616546645616 is an apocalyptic number.

It is an amenable number.

616546645616 is an abundant number, since it is smaller than the sum of its proper divisors (686608764808).

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

616546645616 is a wasteful number, since it uses less digits than its factorization.

616546645616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503105960 (or 3503105954 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 56.

The spelling of 616546645616 in words is "six hundred sixteen billion, five hundred forty-six million, six hundred forty-five thousand, six hundred sixteen".