21572299713162 has 32 divisors (see below), whose sum is σ = 47068798763520. Its totient is φ = 6536787876720.

The previous prime is 21572299713157. The next prime is 21572299713163. The reversal of 21572299713162 is 26131799227512.

It is a super-2 number, since 2×21572299713162² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21572299713163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5218798 + ... + 8389305.

It is an arithmetic number, because the mean of its divisors is an integer number (1470899961360).

Almost surely, 2^{21572299713162} is an apocalyptic number.

21572299713162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21572299713162 is an abundant number, since it is smaller than the sum of its proper divisors (25496499050358).

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

21572299713162 is a wasteful number, since it uses less digits than its factorization.

21572299713162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13632138.

The product of its digits is 5715360, while the sum is 57.

The spelling of 21572299713162 in words is "twenty-one trillion, five hundred seventy-two billion, two hundred ninety-nine million, seven hundred thirteen thousand, one hundred sixty-two".