13320026256 has 20 divisors (see below), whose sum is σ = 34410067952. Its totient is φ = 4440008736.

The previous prime is 13320026231. The next prime is 13320026273. The reversal of 13320026256 is 65262002331.

It is a super-3 number, since 3×13320026256³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138750226 + ... + 138750321.

Almost surely, 2^13320026256 is an apocalyptic number.

13320026256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13320026256 is an abundant number, since it is smaller than the sum of its proper divisors (21090041696).

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

13320026256 is a wasteful number, since it uses less digits than its factorization.

13320026256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277500558 (or 277500552 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 13320026256 its reverse (65262002331), we get a palindrome (78582028587).

The spelling of 13320026256 in words is "thirteen billion, three hundred twenty million, twenty-six thousand, two hundred fifty-six".