22454155242 has 12 divisors (see below), whose sum is σ = 48650669730. Its totient is φ = 7484718408.

The previous prime is 22454155181. The next prime is 22454155267. The reversal of 22454155242 is 24255145422.

22454155242 is a `hidden beast` number, since 2 + 24 + 5 + 41 + 552 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17912877921 + 4541277321 = 133839^2 + 67389^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22454155197 and 22454155206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623726517 + ... + 623726552.

Almost surely, 2^22454155242 is an apocalyptic number.

22454155242 is an abundant number, since it is smaller than the sum of its proper divisors (26196514488).

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

22454155242 is a wasteful number, since it uses less digits than its factorization.

22454155242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247453077 (or 1247453074 counting only the distinct ones).

The product of its digits is 128000, while the sum is 36.

The spelling of 22454155242 in words is "twenty-two billion, four hundred fifty-four million, one hundred fifty-five thousand, two hundred forty-two".