13268315566280 has 16 divisors (see below), whose sum is σ = 29853710024220. Its totient is φ = 5307326226496.

The previous prime is 13268315566249. The next prime is 13268315566301. The reversal of 13268315566280 is 8266551386231.

It can be written as a sum of positive squares in 2 ways, for example, as 12788734385956 + 479581180324 = 3576134^2 + 692518^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165853944539 + ... + 165853944618.

Almost surely, 2^{13268315566280} is an apocalyptic number.

13268315566280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13268315566280 is an abundant number, since it is smaller than the sum of its proper divisors (16585394457940).

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

13268315566280 is a wasteful number, since it uses less digits than its factorization.

13268315566280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331707889168 (or 331707889164 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 13268315566280 in words is "thirteen trillion, two hundred sixty-eight billion, three hundred fifteen million, five hundred sixty-six thousand, two hundred eighty".