23623355520 has 96 divisors (see below), whose sum is σ = 81574419420. Its totient is φ = 6299559936.

The previous prime is 23623355501. The next prime is 23623355521. The reversal of 23623355520 is 2555332632.

23623355520 is a `hidden beast` number, since 2 + 3 + 623 + 3 + 5 + 5 + 5 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20302830144 + 3320525376 = 142488^2 + 57624^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23623355521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2044879 + ... + 2056398.

Almost surely, 2^23623355520 is an apocalyptic number.

23623355520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23623355520 is an abundant number, since it is smaller than the sum of its proper divisors (57951063900).

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

23623355520 is a wasteful number, since it uses less digits than its factorization.

23623355520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101302 (or 4101287 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

The spelling of 23623355520 in words is "twenty-three billion, six hundred twenty-three million, three hundred fifty-five thousand, five hundred twenty".