13328056278 has 32 divisors (see below), whose sum is σ = 29637532800. Its totient is φ = 4439740968.

The previous prime is 13328056241. The next prime is 13328056279. The reversal of 13328056278 is 87265082331.

13328056278 is a `hidden beast` number, since 1 + 3 + 3 + 2 + 80 + 562 + 7 + 8 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13328056279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213 + ... + 163271.

It is an arithmetic number, because the mean of its divisors is an integer number (926172900).

Almost surely, 2^13328056278 is an apocalyptic number.

13328056278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13328056278 is an abundant number, since it is smaller than the sum of its proper divisors (16309476522).

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

13328056278 is a wasteful number, since it uses less digits than its factorization.

13328056278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163593 (or 163587 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 13328056278 in words is "thirteen billion, three hundred twenty-eight million, fifty-six thousand, two hundred seventy-eight".