12599164516 has 9 divisors (see below), whose sum is σ = 22048930771. Its totient is φ = 6299470012.

The previous prime is 12599164481. The next prime is 12599164597. The reversal of 12599164516 is 61546199521.

The square root of 12599164516 is 112246.

It is a perfect power (a square), and thus also a powerful 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 12599164516.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 196431 + ... + 252553.

Almost surely, 2^12599164516 is an apocalyptic number.

12599164516 is the 112246-th square number.

It is an amenable number.

12599164516 is a deficient number, since it is larger than the sum of its proper divisors (9449766255).

12599164516 is an frugal number, since it uses more digits than its factorization.

12599164516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112250 (or 56125 counting only the distinct ones).

The product of its digits is 583200, while the sum is 49.

Multiplying 12599164516 by its sum of digits (49), we get a square (617359061284 = 785722²).

The spelling of 12599164516 in words is "twelve billion, five hundred ninety-nine million, one hundred sixty-four thousand, five hundred sixteen".