22261316520 has 64 divisors (see below), whose sum is σ = 68044043520. Its totient is φ = 5824342784.

The previous prime is 22261316501. The next prime is 22261316531. The reversal of 22261316520 is 2561316222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743744 + ... + 1756463.

It is an arithmetic number, because the mean of its divisors is an integer number (1063188180).

Almost surely, 2^22261316520 is an apocalyptic number.

22261316520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22261316520 is an abundant number, since it is smaller than the sum of its proper divisors (45782727000).

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

22261316520 is a wasteful number, since it uses less digits than its factorization.

22261316520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500274 (or 3500270 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 22261316520 in words is "twenty-two billion, two hundred sixty-one million, three hundred sixteen thousand, five hundred twenty".