11413256521566 has 8 divisors (see below), whose sum is σ = 22826513043144. Its totient is φ = 3804418840520.

The previous prime is 11413256521523. The next prime is 11413256521573. The reversal of 11413256521566 is 66512565231411.

It is a sphenic number, since it is the product of 3 distinct primes.

11413256521566 is an admirable number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 951104710125 + ... + 951104710136.

It is an arithmetic number, because the mean of its divisors is an integer number (2853314130393).

Almost surely, 2^{11413256521566} is an apocalyptic number.

11413256521566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11413256521566 is a wasteful number, since it uses less digits than its factorization.

11413256521566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902209420266.

The product of its digits is 1296000, while the sum is 48.

The spelling of 11413256521566 in words is "eleven trillion, four hundred thirteen billion, two hundred fifty-six million, five hundred twenty-one thousand, five hundred sixty-six".