16502223056 has 80 divisors (see below), whose sum is σ = 36188160000. Its totient is φ = 7222089600.

The previous prime is 16502223029. The next prime is 16502223091. The reversal of 16502223056 is 65032220561.

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, 1078145 + ... + 1093343.

It is an arithmetic number, because the mean of its divisors is an integer number (452352000).

Almost surely, 2^16502223056 is an apocalyptic number.

16502223056 is a gapful number since it is divisible by the number (16) 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 16502223056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18094080000).

16502223056 is an abundant number, since it is smaller than the sum of its proper divisors (19685936944).

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

16502223056 is a wasteful number, since it uses less digits than its factorization.

16502223056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15448 (or 15442 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 16502223056 in words is "sixteen billion, five hundred two million, two hundred twenty-three thousand, fifty-six".