13195773220 has 96 divisors (see below), whose sum is σ = 33667441920. Its totient is φ = 4243622400.

The previous prime is 13195773191. The next prime is 13195773271. The reversal of 13195773220 is 2237759131.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 244102 + ... + 293218.

It is an arithmetic number, because the mean of its divisors is an integer number (350702520).

Almost surely, 2^13195773220 is an apocalyptic number.

13195773220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13195773220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16833720960).

13195773220 is an abundant number, since it is smaller than the sum of its proper divisors (20471668700).

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

13195773220 is a wasteful number, since it uses less digits than its factorization.

13195773220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49253 (or 49251 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 13195773220 in words is "thirteen billion, one hundred ninety-five million, seven hundred seventy-three thousand, two hundred twenty".