11556032366311 has 4 divisors (see below), whose sum is σ = 12235798976112. Its totient is φ = 10876265756512.

The previous prime is 11556032366303. The next prime is 11556032366317. The reversal of 11556032366311 is 11366323065511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11556032366311 - 2³ = 11556032366303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11556032366317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339883304875 + ... + 339883304908.

It is an arithmetic number, because the mean of its divisors is an integer number (3058949744028).

Almost surely, 2^{11556032366311} is an apocalyptic number.

11556032366311 is a deficient number, since it is larger than the sum of its proper divisors (679766609801).

11556032366311 is an equidigital number, since it uses as much as digits as its factorization.

11556032366311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679766609800.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 11556032366311 in words is "eleven trillion, five hundred fifty-six billion, thirty-two million, three hundred sixty-six thousand, three hundred eleven".