22820900556 has 24 divisors (see below), whose sum is σ = 53252204544. Its totient is φ = 7606475920.

The previous prime is 22820900539. The next prime is 22820900569. The reversal of 22820900556 is 65500902822.

It is a super-2 number, since 2×22820900556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166021 + ... + 270563.

It is an arithmetic number, because the mean of its divisors is an integer number (2218841856).

Almost surely, 2^22820900556 is an apocalyptic number.

It is an amenable number.

22820900556 is an abundant number, since it is smaller than the sum of its proper divisors (30431303988).

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

22820900556 is a wasteful number, since it uses less digits than its factorization.

22820900556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122741 (or 122739 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 22820900556 in words is "twenty-two billion, eight hundred twenty million, nine hundred thousand, five hundred fifty-six".