22065652520 has 64 divisors (see below), whose sum is σ = 53158971600. Its totient is φ = 8213708800.

The previous prime is 22065652517. The next prime is 22065652547. The reversal of 22065652520 is 2525656022.

It can be written as a sum of positive squares in 8 ways, for example, as 4903080484 + 17162572036 = 70022^2 + 131006^2 .

It is a super-2 number, since 2×22065652520² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121781 + ... + 242820.

Almost surely, 2^22065652520 is an apocalyptic number.

22065652520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22065652520 is an abundant number, since it is smaller than the sum of its proper divisors (31093319080).

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

22065652520 is a wasteful number, since it uses less digits than its factorization.

22065652520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364718 (or 364714 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 22065652520 in words is "twenty-two billion, sixty-five million, six hundred fifty-two thousand, five hundred twenty".