22620909820 has 24 divisors (see below), whose sum is σ = 47508769728. Its totient is φ = 9047438400.

The previous prime is 22620909803. The next prime is 22620909841. The reversal of 22620909820 is 2890902622.

It is a super-2 number, since 2×22620909820² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163165 + ... + 268075.

It is an arithmetic number, because the mean of its divisors is an integer number (1979532072).

Almost surely, 2^22620909820 is an apocalyptic number.

22620909820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22620909820 is an abundant number, since it is smaller than the sum of its proper divisors (24887859908).

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

22620909820 is a wasteful number, since it uses less digits than its factorization.

22620909820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115701 (or 115699 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 22620909820 in words is "twenty-two billion, six hundred twenty million, nine hundred nine thousand, eight hundred twenty".