20413164351021 has 16 divisors (see below), whose sum is σ = 30585610801536. Its totient is φ = 12015775670976.

The previous prime is 20413164351017. The next prime is 20413164351053. The reversal of 20413164351021 is 12015346131402.

It is not a de Polignac number, because 20413164351021 - 2² = 20413164351017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413164355021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11378574550 + ... + 11378576343.

It is an arithmetic number, because the mean of its divisors is an integer number (1911600675096).

Almost surely, 2^{20413164351021} is an apocalyptic number.

It is an amenable number.

20413164351021 is a deficient number, since it is larger than the sum of its proper divisors (10172446450515).

20413164351021 is a wasteful number, since it uses less digits than its factorization.

20413164351021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22757150932.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 20413164351021 in words is "twenty trillion, four hundred thirteen billion, one hundred sixty-four million, three hundred fifty-one thousand, twenty-one".