22520434663 has 4 divisors (see below), whose sum is σ = 22663877080. Its totient is φ = 22376992248.

The previous prime is 22520434661. The next prime is 22520434669. The reversal of 22520434663 is 36643402522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22520434663 - 2¹ = 22520434661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520434661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71720973 + ... + 71721286.

It is an arithmetic number, because the mean of its divisors is an integer number (5665969270).

Almost surely, 2^22520434663 is an apocalyptic number.

22520434663 is a deficient number, since it is larger than the sum of its proper divisors (143442417).

22520434663 is a wasteful number, since it uses less digits than its factorization.

22520434663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143442416.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 22520434663 in words is "twenty-two billion, five hundred twenty million, four hundred thirty-four thousand, six hundred sixty-three".