16221243350 has 96 divisors (see below), whose sum is σ = 35690215680. Its totient is φ = 5427354240.

The previous prime is 16221243347. The next prime is 16221243383. The reversal of 16221243350 is 5334212261.

It is a happy number.

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, 255497 + ... + 312603.

It is an arithmetic number, because the mean of its divisors is an integer number (371773080).

Almost surely, 2^16221243350 is an apocalyptic number.

16221243350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16221243350 is an abundant number, since it is smaller than the sum of its proper divisors (19468972330).

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

16221243350 is a wasteful number, since it uses less digits than its factorization.

16221243350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57174 (or 57169 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 16221243350 in words is "sixteen billion, two hundred twenty-one million, two hundred forty-three thousand, three hundred fifty".