23216563680 has 96 divisors (see below), whose sum is σ = 74688251904. Its totient is φ = 6059352576.

The previous prime is 23216563631. The next prime is 23216563703. The reversal of 23216563680 is 8636561232.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 491992 + ... + 537111.

It is an arithmetic number, because the mean of its divisors is an integer number (778002624).

Almost surely, 2^23216563680 is an apocalyptic number.

23216563680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23216563680 is an abundant number, since it is smaller than the sum of its proper divisors (51471688224).

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

23216563680 is a wasteful number, since it uses less digits than its factorization.

23216563680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029168 (or 1029160 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 23216563680 in words is "twenty-three billion, two hundred sixteen million, five hundred sixty-three thousand, six hundred eighty".