16205233266 has 48 divisors (see below), whose sum is σ = 37043079840. Its totient is φ = 5105842560.

The previous prime is 16205233241. The next prime is 16205233279. The reversal of 16205233266 is 66233250261.

16205233266 is a `hidden beast` number, since 1 + 620 + 5 + 2 + 3 + 3 + 26 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16205233266.

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, 98026 + ... + 204986.

It is an arithmetic number, because the mean of its divisors is an integer number (771730830).

Almost surely, 2^16205233266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16205233266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18521539920).

16205233266 is an abundant number, since it is smaller than the sum of its proper divisors (20837846574).

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

16205233266 is a wasteful number, since it uses less digits than its factorization.

16205233266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107431 (or 107428 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 16205233266 in words is "sixteen billion, two hundred five million, two hundred thirty-three thousand, two hundred sixty-six".