22166000 has 40 divisors (see below), whose sum is σ = 53602224. Its totient is φ = 8865600.

The previous prime is 22165991. The next prime is 22166009. The reversal of 22166000 is 66122.

It is an interprime number because it is at equal distance from previous prime (22165991) and next prime (22166009).

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 22166000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166009) 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, 3542 + ... + 7541.

Almost surely, 2^22166000 is an apocalyptic number.

22166000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22166000 is an abundant number, since it is smaller than the sum of its proper divisors (31436224).

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

22166000 is a wasteful number, since it uses less digits than its factorization.

22166000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106 (or 11090 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 22166000 is about 4708.0781641770. The cubic root of 22166000 is about 280.9069232391.

The spelling of 22166000 in words is "twenty-two million, one hundred sixty-six thousand".