22152530320 has 20 divisors (see below), whose sum is σ = 51504633180. Its totient is φ = 8861012096.

The previous prime is 22152530317. The next prime is 22152530329. The reversal of 22152530320 is 2303525122.

It can be written as a sum of positive squares in 2 ways, for example, as 4114965904 + 18037564416 = 64148^2 + 134304^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22152530329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138453235 + ... + 138453394.

It is an arithmetic number, because the mean of its divisors is an integer number (2575231659).

Almost surely, 2^22152530320 is an apocalyptic number.

22152530320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22152530320 is an abundant number, since it is smaller than the sum of its proper divisors (29352102860).

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

22152530320 is a wasteful number, since it uses less digits than its factorization.

22152530320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276906642 (or 276906636 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 22152530320 in words is "twenty-two billion, one hundred fifty-two million, five hundred thirty thousand, three hundred twenty".