13411978366 has 4 divisors (see below), whose sum is σ = 20117967552. Its totient is φ = 6705989182.

The previous prime is 13411978361. The next prime is 13411978417. The reversal of 13411978366 is 66387911431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66387911431 = 43 ⋅1543904917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13411978361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3352994590 + ... + 3352994593.

It is an arithmetic number, because the mean of its divisors is an integer number (5029491888).

Almost surely, 2^13411978366 is an apocalyptic number.

13411978366 is a deficient number, since it is larger than the sum of its proper divisors (6705989186).

13411978366 is an equidigital number, since it uses as much as digits as its factorization.

13411978366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705989185.

The product of its digits is 653184, while the sum is 49.

The spelling of 13411978366 in words is "thirteen billion, four hundred eleven million, nine hundred seventy-eight thousand, three hundred sixty-six".