23545656880 has 40 divisors (see below), whose sum is σ = 57963870432. Its totient is φ = 8864246784.

The previous prime is 23545656857. The next prime is 23545656971. The reversal of 23545656880 is 8865654532.

It is a tau number, because it is divible by the number of its divisors (40).

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, 8655132 + ... + 8657851.

Almost surely, 2^23545656880 is an apocalyptic number.

23545656880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23545656880 is an abundant number, since it is smaller than the sum of its proper divisors (34418213552).

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

23545656880 is a wasteful number, since it uses less digits than its factorization.

23545656880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17313013 (or 17313007 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 23545656880 in words is "twenty-three billion, five hundred forty-five million, six hundred fifty-six thousand, eight hundred eighty".