22424391142155 has 32 divisors (see below), whose sum is σ = 41963772902400. Its totient is φ = 11330218681056.

The previous prime is 22424391142151. The next prime is 22424391142163. The reversal of 22424391142155 is 55124119342422.

22424391142155 is a `hidden beast` number, since 2 + 2 + 42 + 4 + 391 + 1 + 4 + 215 + 5 = 666.

It is not a de Polignac number, because 22424391142155 - 2² = 22424391142151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 22424391142155.

It is not an unprimeable number, because it can be changed into a prime (22424391142151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4371223779 + ... + 4371228908.

It is an arithmetic number, because the mean of its divisors is an integer number (1311367903200).

Almost surely, 2^{22424391142155} is an apocalyptic number.

22424391142155 is a deficient number, since it is larger than the sum of its proper divisors (19539381760245).

22424391142155 is a wasteful number, since it uses less digits than its factorization.

22424391142155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8742452720 (or 8742452714 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 22424391142155 in words is "twenty-two trillion, four hundred twenty-four billion, three hundred ninety-one million, one hundred forty-two thousand, one hundred fifty-five".