22530155521 has 8 divisors (see below), whose sum is σ = 23732304320. Its totient is φ = 21329641872.

The previous prime is 22530155513. The next prime is 22530155533. The reversal of 22530155521 is 12555103522.

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 22530155521 - 2³ = 22530155513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22530155561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380445 + ... + 435658.

It is an arithmetic number, because the mean of its divisors is an integer number (2966538040).

Almost surely, 2^22530155521 is an apocalyptic number.

It is an amenable number.

22530155521 is a deficient number, since it is larger than the sum of its proper divisors (1202148799).

22530155521 is a wasteful number, since it uses less digits than its factorization.

22530155521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817575.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 22530155521 in words is "twenty-two billion, five hundred thirty million, one hundred fifty-five thousand, five hundred twenty-one".