23155540200 has 384 divisors, whose sum is σ = 90950428800. Its totient is φ = 5364264960.

The previous prime is 23155540147. The next prime is 23155540211. The reversal of 23155540200 is 204555132.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1183699 + ... + 1203101.

It is an arithmetic number, because the mean of its divisors is an integer number (236850075).

Almost surely, 2^23155540200 is an apocalyptic number.

23155540200 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 23155540200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45475214400).

23155540200 is an abundant number, since it is smaller than the sum of its proper divisors (67794888600).

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

23155540200 is a wasteful number, since it uses less digits than its factorization.

23155540200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19458 (or 19443 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 23155540200 in words is "twenty-three billion, one hundred fifty-five million, five hundred forty thousand, two hundred".