22151040552 has 24 divisors (see below), whose sum is σ = 59992401690. Its totient is φ = 7383680160.

The previous prime is 22151040539. The next prime is 22151040557. The reversal of 22151040552 is 25504015122.

22151040552 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 104 + 0 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21540258756 + 610781796 = 146766^2 + 24714^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (22151040557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153826599 + ... + 153826742.

Almost surely, 2^22151040552 is an apocalyptic number.

It is an amenable number.

22151040552 is an abundant number, since it is smaller than the sum of its proper divisors (37841361138).

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

22151040552 is a wasteful number, since it uses less digits than its factorization.

22151040552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307653353 (or 307653346 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 22151040552 its reverse (25504015122), we get a palindrome (47655055674).

The spelling of 22151040552 in words is "twenty-two billion, one hundred fifty-one million, forty thousand, five hundred fifty-two".