5113661565 has 8 divisors (see below), whose sum is σ = 8181858528. Its totient is φ = 2727286160.

The previous prime is 5113661551. The next prime is 5113661603. The reversal of 5113661565 is 5651663115.

5113661565 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5113661565 - 2⁵ = 5113661533 is a prime.

It is a super-2 number, since 2×5113661565² = 52299069202716498450, which contains 22 as substring.

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, 170455371 + ... + 170455400.

It is an arithmetic number, because the mean of its divisors is an integer number (1022732316).

Almost surely, 2^5113661565 is an apocalyptic number.

It is an amenable number.

5113661565 is a deficient number, since it is larger than the sum of its proper divisors (3068196963).

5113661565 is a wasteful number, since it uses less digits than its factorization.

5113661565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340910779.

The product of its digits is 81000, while the sum is 39.

The square root of 5113661565 is about 71509.8704026234. The cubic root of 5113661565 is about 1722.8362216462.

The spelling of 5113661565 in words is "five billion, one hundred thirteen million, six hundred sixty-one thousand, five hundred sixty-five".