22159391951442 has 16 divisors (see below), whose sum is σ = 46651351476960. Its totient is φ = 6997702721472.

The previous prime is 22159391951441. The next prime is 22159391951513. The reversal of 22159391951442 is 24415919395122.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (22159391951441) 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, 97190315463 + ... + 97190315690.

It is an arithmetic number, because the mean of its divisors is an integer number (2915709467310).

Almost surely, 2^{22159391951442} is an apocalyptic number.

22159391951442 is an abundant number, since it is smaller than the sum of its proper divisors (24491959525518).

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

22159391951442 is a wasteful number, since it uses less digits than its factorization.

22159391951442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194380631177.

The product of its digits is 6998400, while the sum is 57.

The spelling of 22159391951442 in words is "twenty-two trillion, one hundred fifty-nine billion, three hundred ninety-one million, nine hundred fifty-one thousand, four hundred forty-two".