12622624565 has 4 divisors (see below), whose sum is σ = 15147149484. Its totient is φ = 10098099648.

The previous prime is 12622624537. The next prime is 12622624577. The reversal of 12622624565 is 56542622621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7275066436 + 5347558129 = 85294^2 + 73127^2 .

It is a cyclic number.

It is not a de Polignac number, because 12622624565 - 2⁸ = 12622624309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262262452 + ... + 1262262461.

It is an arithmetic number, because the mean of its divisors is an integer number (3786787371).

Almost surely, 2^12622624565 is an apocalyptic number.

It is an amenable number.

12622624565 is a deficient number, since it is larger than the sum of its proper divisors (2524524919).

12622624565 is an equidigital number, since it uses as much as digits as its factorization.

12622624565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524524918.

The product of its digits is 345600, while the sum is 41.

The spelling of 12622624565 in words is "twelve billion, six hundred twenty-two million, six hundred twenty-four thousand, five hundred sixty-five".