23643135664 has 10 divisors (see below), whose sum is σ = 45808575380. Its totient is φ = 11821567824.

The previous prime is 23643135661. The next prime is 23643135767. The reversal of 23643135664 is 46653134632.

It is a self number, because there is not a number n which added to its sum of digits gives 23643135664.

It is not an unprimeable number, because it can be changed into a prime (23643135661) 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 as a sum of consecutive naturals, namely, 738847974 + ... + 738848005.

It is an arithmetic number, because the mean of its divisors is an integer number (4580857538).

Almost surely, 2^23643135664 is an apocalyptic number.

It is an amenable number.

23643135664 is a deficient number, since it is larger than the sum of its proper divisors (22165439716).

23643135664 is a wasteful number, since it uses less digits than its factorization.

23643135664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477695987 (or 1477695981 counting only the distinct ones).

The product of its digits is 933120, while the sum is 43.

The spelling of 23643135664 in words is "twenty-three billion, six hundred forty-three million, one hundred thirty-five thousand, six hundred sixty-four".