11663674385 has 16 divisors (see below), whose sum is σ = 15271027200. Its totient is φ = 8481440640.

The previous prime is 11663674361. The next prime is 11663674387. The reversal of 11663674385 is 58347636611.

It is not a de Polignac number, because 11663674385 - 2²² = 11659480081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11663674387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561749 + ... + 582141.

It is an arithmetic number, because the mean of its divisors is an integer number (954439200).

Almost surely, 2^11663674385 is an apocalyptic number.

It is an amenable number.

11663674385 is a deficient number, since it is larger than the sum of its proper divisors (3607352815).

11663674385 is a wasteful number, since it uses less digits than its factorization.

11663674385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30808.

The product of its digits is 2177280, while the sum is 50.

The spelling of 11663674385 in words is "eleven billion, six hundred sixty-three million, six hundred seventy-four thousand, three hundred eighty-five".