20320890371162 has 16 divisors (see below), whose sum is σ = 30528356460192. Its totient is φ = 10144778088720.

The previous prime is 20320890371161. The next prime is 20320890371213. The reversal of 20320890371162 is 26117309802302.

It is a happy number.

It is a super-2 number, since 2×20320890371162² (a number of 27 digits) contains 22 as substring.

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, 4593737 + ... + 7857747.

It is an arithmetic number, because the mean of its divisors is an integer number (1908022278762).

Almost surely, 2^{20320890371162} is an apocalyptic number.

20320890371162 is a deficient number, since it is larger than the sum of its proper divisors (10207466089030).

20320890371162 is a wasteful number, since it uses less digits than its factorization.

20320890371162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268813.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 20320890371162 in words is "twenty trillion, three hundred twenty billion, eight hundred ninety million, three hundred seventy-one thousand, one hundred sixty-two".