22170621606 has 16 divisors (see below), whose sum is σ = 50675706624. Its totient is φ = 6334463304.

The previous prime is 22170621569. The next prime is 22170621607. The reversal of 22170621606 is 60612607122.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22170621607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263935930 + ... + 263936013.

It is an arithmetic number, because the mean of its divisors is an integer number (3167231664).

Almost surely, 2^22170621606 is an apocalyptic number.

22170621606 is an abundant number, since it is smaller than the sum of its proper divisors (28505085018).

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

22170621606 is a wasteful number, since it uses less digits than its factorization.

22170621606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527871955.

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 22170621606 in words is "twenty-two billion, one hundred seventy million, six hundred twenty-one thousand, six hundred six".