20304302321264 has 40 divisors (see below), whose sum is σ = 42366021057360. Its totient is φ = 9371147148288.

The previous prime is 20304302321239. The next prime is 20304302321291. The reversal of 20304302321264 is 46212320340302.

It is a self number, because there is not a number n which added to its sum of digits gives 20304302321264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37206344 + ... + 37748120.

It is an arithmetic number, because the mean of its divisors is an integer number (1059150526434).

Almost surely, 2^{20304302321264} is an apocalyptic number.

It is an amenable number.

20304302321264 is an abundant number, since it is smaller than the sum of its proper divisors (22061718736096).

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

20304302321264 is a wasteful number, since it uses less digits than its factorization.

20304302321264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721977 (or 721971 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 20304302321264 its reverse (46212320340302), we get a palindrome (66516622661566).

The spelling of 20304302321264 in words is "twenty trillion, three hundred four billion, three hundred two million, three hundred twenty-one thousand, two hundred sixty-four".