616601165 has 8 divisors (see below), whose sum is σ = 740189688. Its totient is φ = 493102080.

The previous prime is 616601159. The next prime is 616601171. The reversal of 616601165 is 561106616.

It is an interprime number because it is at equal distance from previous prime (616601159) and next prime (616601171).

It can be written as a sum of positive squares in 4 ways, for example, as 6461764 + 610139401 = 2542^2 + 24701^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 616601165 - 2¹⁶ = 616535629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6116 + ... + 35645.

It is an arithmetic number, because the mean of its divisors is an integer number (92523711).

Almost surely, 2^616601165 is an apocalyptic number.

It is an amenable number.

616601165 is a deficient number, since it is larger than the sum of its proper divisors (123588523).

616601165 is a wasteful number, since it uses less digits than its factorization.

616601165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44719.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 616601165 is about 24831.4551526889. The cubic root of 616601165 is about 851.1408740261.

The spelling of 616601165 in words is "six hundred sixteen million, six hundred one thousand, one hundred sixty-five".