5156534661 has 8 divisors (see below), whose sum is σ = 6878267040. Its totient is φ = 3436246032.

The previous prime is 5156534561. The next prime is 5156534681. The reversal of 5156534661 is 1664356515.

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

It is not a de Polignac number, because 5156534661 - 2¹⁰ = 5156533637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156534681) 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, 352575 + ... + 366908.

It is an arithmetic number, because the mean of its divisors is an integer number (859783380).

Almost surely, 2^5156534661 is an apocalyptic number.

It is an amenable number.

5156534661 is a deficient number, since it is larger than the sum of its proper divisors (1721732379).

5156534661 is a wasteful number, since it uses less digits than its factorization.

5156534661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721875.

The product of its digits is 324000, while the sum is 42.

The square root of 5156534661 is about 71809.0151791542. The cubic root of 5156534661 is about 1727.6375988852.

The spelling of 5156534661 in words is "five billion, one hundred fifty-six million, five hundred thirty-four thousand, six hundred sixty-one".