23188344216 has 64 divisors (see below), whose sum is σ = 61472844000. Its totient is φ = 7263879168.

The previous prime is 23188344209. The next prime is 23188344229. The reversal of 23188344216 is 61244388132.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232360 + ... + 316808.

Almost surely, 2^23188344216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23188344216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30736422000).

23188344216 is an abundant number, since it is smaller than the sum of its proper divisors (38284499784).

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

23188344216 is a wasteful number, since it uses less digits than its factorization.

23188344216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85148 (or 85144 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The spelling of 23188344216 in words is "twenty-three billion, one hundred eighty-eight million, three hundred forty-four thousand, two hundred sixteen".