5185667166436 has 27 divisors (see below), whose sum is σ = 9101415818089. Its totient is φ = 2585284645328.

The previous prime is 5185667166401. The next prime is 5185667166443. The reversal of 5185667166436 is 6346617665815.

The square root of 5185667166436 is 2277206.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1224134236836 + 3961532929600 = 1106406^2 + 1990360^2 .

It is a super-2 number, since 2×5185667166436² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1771664805 + ... + 1771667731.

Almost surely, 2^{5185667166436} is an apocalyptic number.

5185667166436 is the 2277206-th square number.

It is an amenable number.

5185667166436 is a deficient number, since it is larger than the sum of its proper divisors (3915748651653).

5185667166436 is an frugal number, since it uses more digits than its factorization.

5185667166436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636 (or 3318 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 64.

Multiplying 5185667166436 by its sum of digits (64), we get a square (331882698651904 = 18217648²).

The spelling of 5185667166436 in words is "five trillion, one hundred eighty-five billion, six hundred sixty-seven million, one hundred sixty-six thousand, four hundred thirty-six".