22115153240 has 32 divisors (see below), whose sum is σ = 51364229760. Its totient is φ = 8560704000.

The previous prime is 22115153197. The next prime is 22115153261. The reversal of 22115153240 is 4235151122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8916161 + ... + 8918640.

It is an arithmetic number, because the mean of its divisors is an integer number (1605132180).

Almost surely, 2^22115153240 is an apocalyptic number.

22115153240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22115153240 is an abundant number, since it is smaller than the sum of its proper divisors (29249076520).

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

22115153240 is a wasteful number, since it uses less digits than its factorization.

22115153240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17834843 (or 17834839 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 22115153240 in words is "twenty-two billion, one hundred fifteen million, one hundred fifty-three thousand, two hundred forty".