23338001664 has 144 divisors (see below), whose sum is σ = 69103061440. Its totient is φ = 7769364480.

The previous prime is 23338001639. The next prime is 23338001677. The reversal of 23338001664 is 46610083332.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7055499 + ... + 7058805.

Almost surely, 2^23338001664 is an apocalyptic number.

23338001664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23338001664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34551530720).

23338001664 is an abundant number, since it is smaller than the sum of its proper divisors (45765059776).

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

23338001664 is a wasteful number, since it uses less digits than its factorization.

23338001664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353 (or 4333 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 23338001664 its reverse (46610083332), we get a palindrome (69948084996).

The spelling of 23338001664 in words is "twenty-three billion, three hundred thirty-eight million, one thousand, six hundred sixty-four".