23646646133 has 16 divisors (see below), whose sum is σ = 26124952896. Its totient is φ = 21223463040.

The previous prime is 23646646097. The next prime is 23646646181. The reversal of 23646646133 is 33164664632.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23646646133 - 2¹⁰ = 23646645109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23646646193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1464641 + ... + 1480697.

It is an arithmetic number, because the mean of its divisors is an integer number (1632809556).

Almost surely, 2^23646646133 is an apocalyptic number.

It is an amenable number.

23646646133 is a deficient number, since it is larger than the sum of its proper divisors (2478306763).

23646646133 is a wasteful number, since it uses less digits than its factorization.

23646646133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17764.

The product of its digits is 1119744, while the sum is 44.

The spelling of 23646646133 in words is "twenty-three billion, six hundred forty-six million, six hundred forty-six thousand, one hundred thirty-three".