20722165715200 has 108 divisors (see below), whose sum is σ = 53990103457360. Its totient is φ = 7852610119680.

The previous prime is 20722165715189. The next prime is 20722165715203. The reversal of 20722165715200 is 251756122702.

It is a super-2 number, since 2×20722165715200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (20722165715203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85084674 + ... + 85327873.

Almost surely, 2^{20722165715200} is an apocalyptic number.

20722165715200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20722165715200 is an abundant number, since it is smaller than the sum of its proper divisors (33267937742160).

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

20722165715200 is a wasteful number, since it uses less digits than its factorization.

20722165715200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170412592 (or 170412573 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 20722165715200 in words is "twenty trillion, seven hundred twenty-two billion, one hundred sixty-five million, seven hundred fifteen thousand, two hundred".