22305997563 has 24 divisors (see below), whose sum is σ = 31931025168. Its totient is φ = 13839642432.

The previous prime is 22305997537. The next prime is 22305997589. The reversal of 22305997563 is 36579950322.

It is an interprime number because it is at equal distance from previous prime (22305997537) and next prime (22305997589).

It is not a de Polignac number, because 22305997563 - 2⁵ = 22305997531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22305997463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131220 + ... + 248657.

It is an arithmetic number, because the mean of its divisors is an integer number (1330459382).

Almost surely, 2^22305997563 is an apocalyptic number.

22305997563 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22305997563 is a deficient number, since it is larger than the sum of its proper divisors (9625027605).

22305997563 is a wasteful number, since it uses less digits than its factorization.

22305997563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379963 (or 379940 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 51.

The spelling of 22305997563 in words is "twenty-two billion, three hundred five million, nine hundred ninety-seven thousand, five hundred sixty-three".