16226433666 has 24 divisors (see below), whose sum is σ = 37225348524. Its totient is φ = 5090645760.

The previous prime is 16226433653. The next prime is 16226433667. The reversal of 16226433666 is 66633462261.

It can be written as a sum of positive squares in 2 ways, for example, as 13370065641 + 2856368025 = 115629^2 + 53445^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16226433667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26513475 + ... + 26514086.

Almost surely, 2^16226433666 is an apocalyptic number.

16226433666 is an abundant number, since it is smaller than the sum of its proper divisors (20998914858).

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

16226433666 is a wasteful number, since it uses less digits than its factorization.

16226433666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53027586 (or 53027583 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 45.

The spelling of 16226433666 in words is "sixteen billion, two hundred twenty-six million, four hundred thirty-three thousand, six hundred sixty-six".