5116665577 has 4 divisors (see below), whose sum is σ = 5122035540. Its totient is φ = 5111295616.

The previous prime is 5116665569. The next prime is 5116665607. The reversal of 5116665577 is 7755666115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3329405401 + 1787260176 = 57701^2 + 42276^2 .

It is a cyclic number.

It is not a de Polignac number, because 5116665577 - 2³ = 5116665569 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5116665577.

It is not an unprimeable number, because it can be changed into a prime (5116665977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2683552 + ... + 2685457.

It is an arithmetic number, because the mean of its divisors is an integer number (1280508885).

Almost surely, 2^5116665577 is an apocalyptic number.

It is an amenable number.

5116665577 is a deficient number, since it is larger than the sum of its proper divisors (5369963).

5116665577 is an equidigital number, since it uses as much as digits as its factorization.

5116665577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5369962.

The product of its digits is 1323000, while the sum is 49.

The square root of 5116665577 is about 71530.8714961589. The cubic root of 5116665577 is about 1723.1735147005.

The spelling of 5116665577 in words is "five billion, one hundred sixteen million, six hundred sixty-five thousand, five hundred seventy-seven".