13220193936 has 40 divisors (see below), whose sum is σ = 34160090400. Its totient is φ = 4405709056.

The previous prime is 13220193907. The next prime is 13220193937. The reversal of 13220193936 is 63939102231.

It is a junction number, because it is equal to n+sod(n) for n = 13220193894 and 13220193903.

It is not an unprimeable number, because it can be changed into a prime (13220193937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193531 + ... + 252773.

It is an arithmetic number, because the mean of its divisors is an integer number (854002260).

Almost surely, 2^13220193936 is an apocalyptic number.

13220193936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13220193936 is an abundant number, since it is smaller than the sum of its proper divisors (20939896464).

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

13220193936 is a wasteful number, since it uses less digits than its factorization.

13220193936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63903 (or 63897 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The spelling of 13220193936 in words is "thirteen billion, two hundred twenty million, one hundred ninety-three thousand, nine hundred thirty-six".