616615605165 has 32 divisors (see below), whose sum is σ = 1129609933056. Its totient is φ = 281360355840.

The previous prime is 616615605139. The next prime is 616615605187. The reversal of 616615605165 is 561506516616.

It is not a de Polignac number, because 616615605165 - 2⁸ = 616615604909 is a prime.

It is a super-3 number, since 3×616615605165³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5370672 + ... + 5484281.

It is an arithmetic number, because the mean of its divisors is an integer number (35300310408).

Almost surely, 2^616615605165 is an apocalyptic number.

It is an amenable number.

616615605165 is a deficient number, since it is larger than the sum of its proper divisors (512994327891).

616615605165 is a wasteful number, since it uses less digits than its factorization.

616615605165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855509.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 616615605165 in words is "six hundred sixteen billion, six hundred fifteen million, six hundred five thousand, one hundred sixty-five".