13223091620 has 24 divisors (see below), whose sum is σ = 27802267584. Its totient is φ = 5282803296.

The previous prime is 13223091619. The next prime is 13223091647. The reversal of 13223091620 is 2619032231.

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, 385214 + ... + 418133.

It is an arithmetic number, because the mean of its divisors is an integer number (1158427816).

Almost surely, 2^13223091620 is an apocalyptic number.

13223091620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13223091620 is an abundant number, since it is smaller than the sum of its proper divisors (14579175964).

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

13223091620 is a wasteful number, since it uses less digits than its factorization.

13223091620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804179 (or 804177 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 13223091620 in words is "thirteen billion, two hundred twenty-three million, ninety-one thousand, six hundred twenty".