11633159665 has 12 divisors (see below), whose sum is σ = 14424639732. Its totient is φ = 9006313440.

The previous prime is 11633159663. The next prime is 11633159669. The reversal of 11633159665 is 56695133611.

It can be written as a sum of positive squares in 2 ways, for example, as 3144854241 + 8488305424 = 56079^2 + 92132^2 .

It is not a de Polignac number, because 11633159665 - 2¹ = 11633159663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11633159663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1205722 + ... + 1215331.

It is an arithmetic number, because the mean of its divisors is an integer number (1202053311).

Almost surely, 2^11633159665 is an apocalyptic number.

It is an amenable number.

11633159665 is a deficient number, since it is larger than the sum of its proper divisors (2791480067).

11633159665 is an equidigital number, since it uses as much as digits as its factorization.

11633159665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421120 (or 2421089 counting only the distinct ones).

The product of its digits is 437400, while the sum is 46.

The spelling of 11633159665 in words is "eleven billion, six hundred thirty-three million, one hundred fifty-nine thousand, six hundred sixty-five".