616515116161 has 16 divisors (see below), whose sum is σ = 711821155968. Its totient is φ = 523020960000.

The previous prime is 616515116143. The next prime is 616515116177. The reversal of 616515116161 is 161611515616.

It is not a de Polignac number, because 616515116161 - 2¹⁷ = 616514985089 is a prime.

It is a super-2 number, since 2×616515116161² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616515116111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824646 + ... + 2135968.

It is an arithmetic number, because the mean of its divisors is an integer number (44488822248).

Almost surely, 2^616515116161 is an apocalyptic number.

It is an amenable number.

616515116161 is a deficient number, since it is larger than the sum of its proper divisors (95306039807).

616515116161 is a wasteful number, since it uses less digits than its factorization.

616515116161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314232.

The product of its digits is 32400, while the sum is 40.

The spelling of 616515116161 in words is "six hundred sixteen billion, five hundred fifteen million, one hundred sixteen thousand, one hundred sixty-one".