23021452664 has 32 divisors (see below), whose sum is σ = 49345757280. Its totient is φ = 9863522304.

The previous prime is 23021452661. The next prime is 23021452673. The reversal of 23021452664 is 46625412032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021452661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145724 + ... + 259380.

It is an arithmetic number, because the mean of its divisors is an integer number (1542054915).

Almost surely, 2^23021452664 is an apocalyptic number.

It is an amenable number.

23021452664 is an abundant number, since it is smaller than the sum of its proper divisors (26324304616).

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

23021452664 is a wasteful number, since it uses less digits than its factorization.

23021452664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117287 (or 117283 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 23021452664 its reverse (46625412032), we get a palindrome (69646864696).

The spelling of 23021452664 in words is "twenty-three billion, twenty-one million, four hundred fifty-two thousand, six hundred sixty-four".