5166512613 has 16 divisors (see below), whose sum is σ = 7662816000. Its totient is φ = 3440416320.

The previous prime is 5166512591. The next prime is 5166512641. The reversal of 5166512613 is 3162156615.

5166512613 is a `hidden beast` number, since 516 + 6 + 5 + 126 + 13 = 666.

It is not a de Polignac number, because 5166512613 - 2⁵ = 5166512581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5166512683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84813 + ... + 132386.

It is an arithmetic number, because the mean of its divisors is an integer number (478926000).

Almost surely, 2^5166512613 is an apocalyptic number.

It is an amenable number.

5166512613 is a deficient number, since it is larger than the sum of its proper divisors (2496303387).

5166512613 is a wasteful number, since it uses less digits than its factorization.

5166512613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218089 (or 218083 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 5166512613 is about 71878.4572246789. The cubic root of 5166512613 is about 1728.7512135733.

The spelling of 5166512613 in words is "five billion, one hundred sixty-six million, five hundred twelve thousand, six hundred thirteen".