16205222264 has 64 divisors (see below), whose sum is σ = 38004595200. Its totient is φ = 6293347200.

The previous prime is 16205222221. The next prime is 16205222291. The reversal of 16205222264 is 46222250261.

It is a self number, because there is not a number n which added to its sum of digits gives 16205222264.

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, 149282 + ... + 233870.

It is an arithmetic number, because the mean of its divisors is an integer number (593821800).

Almost surely, 2^16205222264 is an apocalyptic number.

16205222264 is a gapful number since it is divisible by the number (14) 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 16205222264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19002297600).

16205222264 is an abundant number, since it is smaller than the sum of its proper divisors (21799372936).

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

16205222264 is a wasteful number, since it uses less digits than its factorization.

16205222264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84924 (or 84920 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 16205222264 in words is "sixteen billion, two hundred five million, two hundred twenty-two thousand, two hundred sixty-four".