13266417220 has 24 divisors (see below), whose sum is σ = 31839401664. Its totient is φ = 4548485856.

The previous prime is 13266417173. The next prime is 13266417257. The reversal of 13266417220 is 2271466231.

It is a super-2 number, since 2×13266417220² (a number of 21 digits) contains 22 as substring.

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, 47379922 + ... + 47380201.

It is an arithmetic number, because the mean of its divisors is an integer number (1326641736).

Almost surely, 2^13266417220 is an apocalyptic number.

13266417220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13266417220 is an abundant number, since it is smaller than the sum of its proper divisors (18572984444).

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

13266417220 is a wasteful number, since it uses less digits than its factorization.

13266417220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94760139 (or 94760137 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 13266417220 in words is "thirteen billion, two hundred sixty-six million, four hundred seventeen thousand, two hundred twenty".