23565069400 has 96 divisors (see below), whose sum is σ = 57019788000. Its totient is φ = 9046123520.

The previous prime is 23565069391. The next prime is 23565069413. The reversal of 23565069400 is 496056532.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 956436 + ... + 980764.

It is an arithmetic number, because the mean of its divisors is an integer number (593956125).

Almost surely, 2^23565069400 is an apocalyptic number.

23565069400 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 23565069400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28509894000).

23565069400 is an abundant number, since it is smaller than the sum of its proper divisors (33454718600).

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

23565069400 is a wasteful number, since it uses less digits than its factorization.

23565069400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24541 (or 24532 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 23565069400 in words is "twenty-three billion, five hundred sixty-five million, sixty-nine thousand, four hundred".