23820520500 has 480 divisors, whose sum is σ = 90111909888. Its totient is φ = 5365440000.

The previous prime is 23820520483. The next prime is 23820520541. The reversal of 23820520500 is 502502832.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 20694925 + ... + 20696075.

Almost surely, 2^23820520500 is an apocalyptic number.

23820520500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23820520500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45055954944).

23820520500 is an abundant number, since it is smaller than the sum of its proper divisors (66291389388).

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

23820520500 is a wasteful number, since it uses less digits than its factorization.

23820520500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 23820520500 in words is "twenty-three billion, eight hundred twenty million, five hundred twenty thousand, five hundred".