22166603620 has 48 divisors (see below), whose sum is σ = 56329257600. Its totient is φ = 7152920064.

The previous prime is 22166603617. The next prime is 22166603651. The reversal of 22166603620 is 2630666122.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 15 ways as a sum of consecutive naturals, for example, 4654470 + ... + 4659229.

It is an arithmetic number, because the mean of its divisors is an integer number (1173526200).

Almost surely, 2^22166603620 is an apocalyptic number.

22166603620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22166603620 is an abundant number, since it is smaller than the sum of its proper divisors (34162653980).

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

22166603620 is a wasteful number, since it uses less digits than its factorization.

22166603620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313732 (or 9313730 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 22166603620 in words is "twenty-two billion, one hundred sixty-six million, six hundred three thousand, six hundred twenty".