22145239960 has 64 divisors (see below), whose sum is σ = 52619777280. Its totient is φ = 8370848640.

The previous prime is 22145239957. The next prime is 22145239997. The reversal of 22145239960 is 6993254122.

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 15 ways as a sum of consecutive naturals, for example, 68646 + ... + 221365.

It is an arithmetic number, because the mean of its divisors is an integer number (822184020).

Almost surely, 2^22145239960 is an apocalyptic number.

22145239960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22145239960 is an abundant number, since it is smaller than the sum of its proper divisors (30474537320).

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

22145239960 is a wasteful number, since it uses less digits than its factorization.

22145239960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290128 (or 290124 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 22145239960 in words is "twenty-two billion, one hundred forty-five million, two hundred thirty-nine thousand, nine hundred sixty".