20344140256626 has 24 divisors (see below), whose sum is σ = 44079565212540. Its totient is φ = 6781288599936.

The previous prime is 20344140256621. The next prime is 20344140256639. The reversal of 20344140256626 is 62665204144302.

It is a happy number.

20344140256626 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 4 + 14 + 0 + 2 + 5 + 6 + 626 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19193993399025 + 1150146857601 = 4381095^2 + 1072449^2 .

It is not an unprimeable number, because it can be changed into a prime (20344140256621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6245755 + ... + 8927358.

Almost surely, 2^{20344140256626} is an apocalyptic number.

20344140256626 is an abundant number, since it is smaller than the sum of its proper divisors (23735424955914).

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

20344140256626 is a wasteful number, since it uses less digits than its factorization.

20344140256626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15247610 (or 15247607 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 20344140256626 in words is "twenty trillion, three hundred forty-four billion, one hundred forty million, two hundred fifty-six thousand, six hundred twenty-six".