616560065616 has 80 divisors (see below), whose sum is σ = 1738312901568. Its totient is φ = 186757401600.

The previous prime is 616560065591. The next prime is 616560065617.

616560065616 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616560065617) by changing a digit.

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, 1009426 + ... + 1500686.

Almost surely, 2^616560065616 is an apocalyptic number.

616560065616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

616560065616 is an abundant number, since it is smaller than the sum of its proper divisors (1121752835952).

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

616560065616 is a wasteful number, since it uses less digits than its factorization.

616560065616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493660 (or 493654 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 616560065616 in words is "six hundred sixteen billion, five hundred sixty million, sixty-five thousand, six hundred sixteen".