5155616605 has 64 divisors (see below), whose sum is σ = 6903361728. Its totient is φ = 3680501760.

The previous prime is 5155616569. The next prime is 5155616633. The reversal of 5155616605 is 5066165515.

It can be written as a sum of positive squares in 32 ways, for example, as 1326853476 + 3828763129 = 36426^2 + 61877^2 .

It is not a de Polignac number, because 5155616605 - 2²³ = 5147227997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20060637 + ... + 20060893.

It is an arithmetic number, because the mean of its divisors is an integer number (107865027).

Almost surely, 2^5155616605 is an apocalyptic number.

It is an amenable number.

5155616605 is a deficient number, since it is larger than the sum of its proper divisors (1747745123).

5155616605 is a wasteful number, since it uses less digits than its factorization.

5155616605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 5155616605 is about 71802.6225495977. The cubic root of 5155616605 is about 1727.5350647673.

The spelling of 5155616605 in words is "five billion, one hundred fifty-five million, six hundred sixteen thousand, six hundred five".