12724166626 has 8 divisors (see below), whose sum is σ = 19103651820. Its totient is φ = 6356282688.

The previous prime is 12724166573. The next prime is 12724166629. The reversal of 12724166626 is 62666142721.

It can be written as a sum of positive squares in 2 ways, for example, as 12332324601 + 391842025 = 111051^2 + 19795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12724166629) 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, 2897571 + ... + 2901958.

Almost surely, 2^12724166626 is an apocalyptic number.

12724166626 is a deficient number, since it is larger than the sum of its proper divisors (6379485194).

12724166626 is a wasteful number, since it uses less digits than its factorization.

12724166626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5800628.

The product of its digits is 290304, while the sum is 43.

The spelling of 12724166626 in words is "twelve billion, seven hundred twenty-four million, one hundred sixty-six thousand, six hundred twenty-six".