22166235042 has 32 divisors (see below), whose sum is σ = 50708477952. Its totient is φ = 6327860304.

The previous prime is 22166235037. The next prime is 22166235053. The reversal of 22166235042 is 24053266122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22166234994 and 22166235012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172458 + ... + 272165.

It is an arithmetic number, because the mean of its divisors is an integer number (1584639936).

Almost surely, 2^22166235042 is an apocalyptic number.

22166235042 is an abundant number, since it is smaller than the sum of its proper divisors (28542242910).

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

22166235042 is a wasteful number, since it uses less digits than its factorization.

22166235042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445822.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 22166235042 in words is "twenty-two billion, one hundred sixty-six million, two hundred thirty-five thousand, forty-two".