11664311545 has 8 divisors (see below), whose sum is σ = 13999924224. Its totient is φ = 9329615664.

The previous prime is 11664311543. The next prime is 11664311567. The reversal of 11664311545 is 54511346611.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11664311545 - 2¹ = 11664311543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11664311543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200889 + ... + 252358.

It is an arithmetic number, because the mean of its divisors is an integer number (1749990528).

Almost surely, 2^11664311545 is an apocalyptic number.

It is an amenable number.

11664311545 is a deficient number, since it is larger than the sum of its proper divisors (2335612679).

11664311545 is an equidigital number, since it uses as much as digits as its factorization.

11664311545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458399.

The product of its digits is 43200, while the sum is 37.

The spelling of 11664311545 in words is "eleven billion, six hundred sixty-four million, three hundred eleven thousand, five hundred forty-five".