22195042956 has 120 divisors (see below), whose sum is σ = 58727592000. Its totient is φ = 7308815328.

The previous prime is 22195042949. The next prime is 22195042973. The reversal of 22195042956 is 65924059122.

22195042956 is a `hidden beast` number, since 2 + 219 + 5 + 0 + 429 + 5 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17298691 + ... + 17299973.

It is an arithmetic number, because the mean of its divisors is an integer number (489396600).

Almost surely, 2^22195042956 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 22195042956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29363796000).

22195042956 is an abundant number, since it is smaller than the sum of its proper divisors (36532549044).

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

22195042956 is a wasteful number, since it uses less digits than its factorization.

22195042956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 22195042956 in words is "twenty-two billion, one hundred ninety-five million, forty-two thousand, nine hundred fifty-six".