616612216616 has 16 divisors (see below), whose sum is σ = 1261252261440. Its totient is φ = 280278280240.

The previous prime is 616612216513. The next prime is 616612216631.

616612216616 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3503478416 + ... + 3503478591.

It is an arithmetic number, because the mean of its divisors is an integer number (78828266340).

Almost surely, 2^616612216616 is an apocalyptic number.

It is an amenable number.

616612216616 is an abundant number, since it is smaller than the sum of its proper divisors (644640044824).

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

616612216616 is a wasteful number, since it uses less digits than its factorization.

616612216616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006957024 (or 7006957020 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The spelling of 616612216616 in words is "six hundred sixteen billion, six hundred twelve million, two hundred sixteen thousand, six hundred sixteen".