23321066636 has 12 divisors (see below), whose sum is σ = 46642133328. Its totient is φ = 9994742832.

The previous prime is 23321066611. The next prime is 23321066647. The reversal of 23321066636 is 63666012332.

23321066636 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 23321066636.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 416447591 + ... + 416447646.

It is an arithmetic number, because the mean of its divisors is an integer number (3886844444).

Almost surely, 2^23321066636 is an apocalyptic number.

It is an amenable number.

23321066636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23321066636 is a wasteful number, since it uses less digits than its factorization.

23321066636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832895248 (or 832895246 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 38.

Adding to 23321066636 its reverse (63666012332), we get a palindrome (86987078968).

The spelling of 23321066636 in words is "twenty-three billion, three hundred twenty-one million, sixty-six thousand, six hundred thirty-six".