22534515666 has 24 divisors (see below), whose sum is σ = 52580537100. Its totient is φ = 6933697056.

The previous prime is 22534515649. The next prime is 22534515683. The reversal of 22534515666 is 66651543522.

It is an interprime number because it is at equal distance from previous prime (22534515649) and next prime (22534515683).

It can be written as a sum of positive squares in 2 ways, for example, as 19971625041 + 2562890625 = 141321^2 + 50625^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48150441 + ... + 48150908.

Almost surely, 2^22534515666 is an apocalyptic number.

22534515666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22534515666 is an abundant number, since it is smaller than the sum of its proper divisors (30046021434).

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

22534515666 is a wasteful number, since it uses less digits than its factorization.

22534515666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96301370 (or 96301367 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 22534515666 in words is "twenty-two billion, five hundred thirty-four million, five hundred fifteen thousand, six hundred sixty-six".