22166361216 has 96 divisors (see below), whose sum is σ = 63817462800. Its totient is φ = 7385144832.

The previous prime is 22166361199. The next prime is 22166361227. The reversal of 22166361216 is 61216366122.

22166361216 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 636 + 1 + 2 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3382455 + ... + 3389001.

Almost surely, 2^22166361216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22166361216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31908731400).

22166361216 is an abundant number, since it is smaller than the sum of its proper divisors (41651101584).

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

22166361216 is a wasteful number, since it uses less digits than its factorization.

22166361216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9506 (or 9491 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 22166361216 in words is "twenty-two billion, one hundred sixty-six million, three hundred sixty-one thousand, two hundred sixteen".