22154704002 has 18 divisors (see below), whose sum is σ = 48003226947. Its totient is φ = 7384690836.

The previous prime is 22154703929. The next prime is 22154704031. The reversal of 22154704002 is 20040745122.

22154704002 is a `hidden beast` number, since 2 + 215 + 47 + 0 + 400 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11077352001 + 11077352001 = 105249^2 + 105249^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105249.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 613953 + ... + 649035.

Almost surely, 2^22154704002 is an apocalyptic number.

22154704002 is an abundant number, since it is smaller than the sum of its proper divisors (25848522945).

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

22154704002 is an frugal number, since it uses more digits than its factorization.

22154704002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70174 (or 35088 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The spelling of 22154704002 in words is "twenty-two billion, one hundred fifty-four million, seven hundred four thousand, two".