23133090816 has 528 divisors, whose sum is σ = 79827890688. Its totient is φ = 6370099200.

The previous prime is 23133090809. The next prime is 23133090839. The reversal of 23133090816 is 61809033132.

23133090816 is a `hidden beast` number, since 231 + 330 + 90 + 8 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53424936 + ... + 53425368.

Almost surely, 2^23133090816 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 23133090816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39913945344).

23133090816 is an abundant number, since it is smaller than the sum of its proper divisors (56694799872).

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

23133090816 is a wasteful number, since it uses less digits than its factorization.

23133090816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 23133090816 in words is "twenty-three billion, one hundred thirty-three million, ninety thousand, eight hundred sixteen".