22166476920 has 288 divisors, whose sum is σ = 88214864400. Its totient is φ = 4799886336.

The previous prime is 22166476897. The next prime is 22166476951. The reversal of 22166476920 is 2967466122.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 302092 + ... + 368228.

Almost surely, 2^22166476920 is an apocalyptic number.

22166476920 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 22166476920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44107432200).

22166476920 is an abundant number, since it is smaller than the sum of its proper divisors (66048387480).

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

22166476920 is a wasteful number, since it uses less digits than its factorization.

22166476920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66187 (or 66173 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 22166476920 in words is "twenty-two billion, one hundred sixty-six million, four hundred seventy-six thousand, nine hundred twenty".