5111664651 has 24 divisors (see below), whose sum is σ = 7684722864. Its totient is φ = 3395429280.

The previous prime is 5111664631. The next prime is 5111664653. The reversal of 5111664651 is 1564661115.

5111664651 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 6 + 646 + 5 + 1 = 666.

It is not a de Polignac number, because 5111664651 - 2²⁷ = 4977446923 is a prime.

It is a super-2 number, since 2×5111664651² = 52258231008565903602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5111664653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29341 + ... + 105281.

It is an arithmetic number, because the mean of its divisors is an integer number (320196786).

Almost surely, 2^5111664651 is an apocalyptic number.

5111664651 is a deficient number, since it is larger than the sum of its proper divisors (2573058213).

5111664651 is an equidigital number, since it uses as much as digits as its factorization.

5111664651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76233 (or 76221 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 5111664651 is about 71495.9065331715. The cubic root of 5111664651 is about 1722.6119333256.

The spelling of 5111664651 in words is "five billion, one hundred eleven million, six hundred sixty-four thousand, six hundred fifty-one".