5116666601 has 4 divisors (see below), whose sum is σ = 5117679492. Its totient is φ = 5115653712.

The previous prime is 5116666573. The next prime is 5116666631. The reversal of 5116666601 is 1066666115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1066666115 = 5 ⋅213333223.

It can be written as a sum of positive squares in 2 ways, for example, as 4432896400 + 683770201 = 66580^2 + 26149^2 .

It is a cyclic number.

It is not a de Polignac number, because 5116666601 - 2²² = 5112472297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5116666631) 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, 498830 + ... + 508983.

It is an arithmetic number, because the mean of its divisors is an integer number (1279419873).

Almost surely, 2^5116666601 is an apocalyptic number.

It is an amenable number.

5116666601 is a deficient number, since it is larger than the sum of its proper divisors (1012891).

5116666601 is a wasteful number, since it uses less digits than its factorization.

5116666601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012890.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 5116666601 is about 71530.8786539072. The cubic root of 5116666601 is about 1723.1736296536.

The spelling of 5116666601 in words is "five billion, one hundred sixteen million, six hundred sixty-six thousand, six hundred one".