22292889660 has 120 divisors (see below), whose sum is σ = 70045002720. Its totient is φ = 5935303296.

The previous prime is 22292889643. The next prime is 22292889673. The reversal of 22292889660 is 6698829222.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 22292889597 and 22292889606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1037506 + ... + 1058774.

It is an arithmetic number, because the mean of its divisors is an integer number (583708356).

Almost surely, 2^22292889660 is an apocalyptic number.

22292889660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22292889660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35022501360).

22292889660 is an abundant number, since it is smaller than the sum of its proper divisors (47752113060).

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

22292889660 is a wasteful number, since it uses less digits than its factorization.

22292889660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21937 (or 21926 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 22292889660 in words is "twenty-two billion, two hundred ninety-two million, eight hundred eighty-nine thousand, six hundred sixty".