13565222940 has 48 divisors (see below), whose sum is σ = 38014452000. Its totient is φ = 3614361600.

The previous prime is 13565222929. The next prime is 13565222941. The reversal of 13565222940 is 4922256531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13565222941) 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 15 ways as a sum of consecutive naturals, for example, 22065 + ... + 166184.

It is an arithmetic number, because the mean of its divisors is an integer number (791967750).

Almost surely, 2^13565222940 is an apocalyptic number.

13565222940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13565222940 is an abundant number, since it is smaller than the sum of its proper divisors (24449229060).

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

13565222940 is a wasteful number, since it uses less digits than its factorization.

13565222940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189462 (or 189460 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 13565222940 in words is "thirteen billion, five hundred sixty-five million, two hundred twenty-two thousand, nine hundred forty".