16324306666 has 8 divisors (see below), whose sum is σ = 24591552804. Its totient is φ = 8127122400.

The previous prime is 16324306643. The next prime is 16324306667. The reversal of 16324306666 is 66660342361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16216749025 + 107557641 = 127345^2 + 10371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16324306666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16324306667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17514885 + ... + 17515816.

Almost surely, 2^16324306666 is an apocalyptic number.

16324306666 is a deficient number, since it is larger than the sum of its proper divisors (8267246138).

16324306666 is a wasteful number, since it uses less digits than its factorization.

16324306666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35030936.

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 16324306666 in words is "sixteen billion, three hundred twenty-four million, three hundred six thousand, six hundred sixty-six".