23563540000 has 720 divisors, whose sum is σ = 79156211904. Its totient is φ = 6716160000.

The previous prime is 23563539931. The next prime is 23563540019. The reversal of 23563540000 is 4536532.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 220219947 + ... + 220220053.

Almost surely, 2^23563540000 is an apocalyptic number.

23563540000 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 23563540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39578105952).

23563540000 is an abundant number, since it is smaller than the sum of its proper divisors (55592671904).

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

23563540000 is a wasteful number, since it uses less digits than its factorization.

23563540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 23563540000 in words is "twenty-three billion, five hundred sixty-three million, five hundred forty thousand".