22671801620 has 48 divisors (see below), whose sum is σ = 51743611920. Its totient is φ = 8294317056.

The previous prime is 22671801617. The next prime is 22671801629. The reversal of 22671801620 is 2610817622.

It can be written as a sum of positive squares in 8 ways, for example, as 262310416 + 22409491204 = 16196^2 + 149698^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22671801629) 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, 371657 + ... + 428336.

It is an arithmetic number, because the mean of its divisors is an integer number (1077991915).

Almost surely, 2^22671801620 is an apocalyptic number.

22671801620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22671801620 is an abundant number, since it is smaller than the sum of its proper divisors (29071810300).

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

22671801620 is a wasteful number, since it uses less digits than its factorization.

22671801620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800124 (or 800122 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 22671801620 in words is "twenty-two billion, six hundred seventy-one million, eight hundred one thousand, six hundred twenty".