20320890371168 has 48 divisors (see below), whose sum is σ = 40856824673280. Its totient is φ = 9946814592000.

The previous prime is 20320890371161. The next prime is 20320890371213. The reversal of 20320890371168 is 86117309802302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320890371161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35034848 + ... + 35610143.

It is an arithmetic number, because the mean of its divisors is an integer number (851183847360).

Almost surely, 2^{20320890371168} is an apocalyptic number.

It is an amenable number.

20320890371168 is an abundant number, since it is smaller than the sum of its proper divisors (20535934302112).

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

20320890371168 is a wasteful number, since it uses less digits than its factorization.

20320890371168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70645191 (or 70645183 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 20320890371168 in words is "twenty trillion, three hundred twenty billion, eight hundred ninety million, three hundred seventy-one thousand, one hundred sixty-eight".