12979620220176 has 135 divisors (see below), whose sum is σ = 36883395238053. Its totient is φ = 4261013729280.

The previous prime is 12979620220153. The next prime is 12979620220207. The reversal of 12979620220176 is 67102202697921.

The square root of 12979620220176 is 3602724.

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

12979620220176 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 9 + 620 + 2 + 2 + 0 + 1 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10182966037776 + 2796654182400 = 3191076^2 + 1672320^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2896587856 + ... + 2896592336.

Almost surely, 2^{12979620220176} is an apocalyptic number.

12979620220176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12979620220176 is the 3602724-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12979620220176

12979620220176 is an abundant number, since it is smaller than the sum of its proper divisors (23903775017877).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12979620220176 is an frugal number, since it uses more digits than its factorization.

12979620220176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9110 (or 4553 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 12979620220176 in words is "twelve trillion, nine hundred seventy-nine billion, six hundred twenty million, two hundred twenty thousand, one hundred seventy-six".