22246165520 has 20 divisors (see below), whose sum is σ = 51722335020. Its totient is φ = 8898466176.

The previous prime is 22246165519. The next prime is 22246165531. The reversal of 22246165520 is 2556164222.

It can be written as a sum of positive squares in 2 ways, for example, as 15928459264 + 6317706256 = 126208^2 + 79484^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139038455 + ... + 139038614.

It is an arithmetic number, because the mean of its divisors is an integer number (2586116751).

Almost surely, 2^22246165520 is an apocalyptic number.

22246165520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22246165520 is an abundant number, since it is smaller than the sum of its proper divisors (29476169500).

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

22246165520 is a wasteful number, since it uses less digits than its factorization.

22246165520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278077082 (or 278077076 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 22246165520 in words is "twenty-two billion, two hundred forty-six million, one hundred sixty-five thousand, five hundred twenty".