22520710745 has 8 divisors (see below), whose sum is σ = 29103687816. Its totient is φ = 16630678656.

The previous prime is 22520710733. The next prime is 22520710753. The reversal of 22520710745 is 54701702522.

It can be written as a sum of positive squares in 4 ways, for example, as 370639504 + 22150071241 = 19252^2 + 148829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22520710745 - 2²⁰ = 22519662169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173236172 + ... + 173236301.

It is an arithmetic number, because the mean of its divisors is an integer number (3637960977).

Almost surely, 2^22520710745 is an apocalyptic number.

It is an amenable number.

22520710745 is a deficient number, since it is larger than the sum of its proper divisors (6582977071).

22520710745 is a wasteful number, since it uses less digits than its factorization.

22520710745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346472491.

The product of its (nonzero) digits is 39200, while the sum is 35.

The spelling of 22520710745 in words is "twenty-two billion, five hundred twenty million, seven hundred ten thousand, seven hundred forty-five".