5156660165 has 8 divisors (see below), whose sum is σ = 6251786520. Its totient is φ = 4082798592.

The previous prime is 5156660161. The next prime is 5156660177. The reversal of 5156660165 is 5610666515.

It can be written as a sum of positive squares in 4 ways, for example, as 1530452641 + 3626207524 = 39121^2 + 60218^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5156660165 - 2² = 5156660161 is a prime.

It is a super-2 number, since 2×5156660165² = 53182288114595654450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156660161) 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 7 ways as a sum of consecutive naturals, for example, 5315660 + ... + 5316629.

It is an arithmetic number, because the mean of its divisors is an integer number (781473315).

Almost surely, 2^5156660165 is an apocalyptic number.

It is an amenable number.

5156660165 is a deficient number, since it is larger than the sum of its proper divisors (1095126355).

5156660165 is a wasteful number, since it uses less digits than its factorization.

5156660165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10632391.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 5156660165 is about 71809.8890474007. The cubic root of 5156660165 is about 1727.6516149952.

The spelling of 5156660165 in words is "five billion, one hundred fifty-six million, six hundred sixty thousand, one hundred sixty-five".