11566452331 has 16 divisors (see below), whose sum is σ = 14090675200. Its totient is φ = 9273408768.

The previous prime is 11566452311. The next prime is 11566452341. The reversal of 11566452331 is 13325466511.

11566452331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11566452331 - 2¹⁵ = 11566419563 is a prime.

It is a super-2 number, since 2×11566452331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11566452311) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 539910 + ... + 560923.

It is an arithmetic number, because the mean of its divisors is an integer number (880667200).

Almost surely, 2^11566452331 is an apocalyptic number.

11566452331 is a deficient number, since it is larger than the sum of its proper divisors (2524222869).

11566452331 is a wasteful number, since it uses less digits than its factorization.

11566452331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100938.

The product of its digits is 64800, while the sum is 37.

The spelling of 11566452331 in words is "eleven billion, five hundred sixty-six million, four hundred fifty-two thousand, three hundred thirty-one".