13361281973516 has 24 divisors (see below), whose sum is σ = 24757860587040. Its totient is φ = 6287613585152.

The previous prime is 13361281973447. The next prime is 13361281973593. The reversal of 13361281973516 is 61537918216331.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9043745 + ... + 10416903.

It is an arithmetic number, because the mean of its divisors is an integer number (1031577524460).

Almost surely, 2^{13361281973516} is an apocalyptic number.

It is an amenable number.

13361281973516 is a deficient number, since it is larger than the sum of its proper divisors (11396578613524).

13361281973516 is a wasteful number, since it uses less digits than its factorization.

13361281973516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516273 (or 1516271 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 56.

The spelling of 13361281973516 in words is "thirteen trillion, three hundred sixty-one billion, two hundred eighty-one million, nine hundred seventy-three thousand, five hundred sixteen".