22005565506 has 48 divisors (see below), whose sum is σ = 47938434336. Its totient is φ = 7295335488.

The previous prime is 22005565499. The next prime is 22005565513. The reversal of 22005565506 is 60556550022.

It is an interprime number because it is at equal distance from previous prime (22005565499) and next prime (22005565513).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2864086 + ... + 2871758.

It is an arithmetic number, because the mean of its divisors is an integer number (998717382).

Almost surely, 2^22005565506 is an apocalyptic number.

22005565506 is an abundant number, since it is smaller than the sum of its proper divisors (25932868830).

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

22005565506 is a wasteful number, since it uses less digits than its factorization.

22005565506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8527 (or 8524 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 22005565506 in words is "twenty-two billion, five million, five hundred sixty-five thousand, five hundred six".