22156070979 has 16 divisors (see below), whose sum is σ = 33774538752. Its totient is φ = 12655771968.

The previous prime is 22156070953. The next prime is 22156071011. The reversal of 22156070979 is 97907065122.

It is not a de Polignac number, because 22156070979 - 2⁹ = 22156070467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22156070929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145059 + ... + 255644.

It is an arithmetic number, because the mean of its divisors is an integer number (2110908672).

Almost surely, 2^22156070979 is an apocalyptic number.

22156070979 is a deficient number, since it is larger than the sum of its proper divisors (11618467773).

22156070979 is a wasteful number, since it uses less digits than its factorization.

22156070979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403346.

The product of its (nonzero) digits is 476280, while the sum is 48.

The spelling of 22156070979 in words is "twenty-two billion, one hundred fifty-six million, seventy thousand, nine hundred seventy-nine".