23401555568 has 40 divisors (see below), whose sum is σ = 48048018480. Its totient is φ = 11021749760.

The previous prime is 23401555549. The next prime is 23401555591. The reversal of 23401555568 is 86555510432.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 596030 + ... + 634077.

It is an arithmetic number, because the mean of its divisors is an integer number (1201200462).

Almost surely, 2^23401555568 is an apocalyptic number.

It is an amenable number.

23401555568 is an abundant number, since it is smaller than the sum of its proper divisors (24646462912).

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

23401555568 is a wasteful number, since it uses less digits than its factorization.

23401555568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230185 (or 1230179 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 44.

The spelling of 23401555568 in words is "twenty-three billion, four hundred one million, five hundred fifty-five thousand, five hundred sixty-eight".