23656189500 has 72 divisors (see below), whose sum is σ = 74627406672. Its totient is φ = 6308316000.

The previous prime is 23656189493. The next prime is 23656189541. The reversal of 23656189500 is 598165632.

23656189500 is a `hidden beast` number, since 2 + 3 + 6 + 5 + 61 + 89 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2623966 + ... + 2632965.

Almost surely, 2^23656189500 is an apocalyptic number.

23656189500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23656189500 is an abundant number, since it is smaller than the sum of its proper divisors (50971217172).

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

23656189500 is a wasteful number, since it uses less digits than its factorization.

23656189500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256956 (or 5256941 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 23656189500 in words is "twenty-three billion, six hundred fifty-six million, one hundred eighty-nine thousand, five hundred".