22440520165 has 32 divisors (see below), whose sum is σ = 31646983680. Its totient is φ = 14953123584.

The previous prime is 22440520153. The next prime is 22440520177. The reversal of 22440520165 is 56102504422.

It is an interprime number because it is at equal distance from previous prime (22440520153) and next prime (22440520177).

It is not a de Polignac number, because 22440520165 - 2¹⁵ = 22440487397 is a prime.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 1063104 + ... + 1084006.

It is an arithmetic number, because the mean of its divisors is an integer number (988968240).

Almost surely, 2^22440520165 is an apocalyptic number.

It is an amenable number.

22440520165 is a deficient number, since it is larger than the sum of its proper divisors (9206463515).

22440520165 is a wasteful number, since it uses less digits than its factorization.

22440520165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21781.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 22440520165 in words is "twenty-two billion, four hundred forty million, five hundred twenty thousand, one hundred sixty-five".