1327666329 has 48 divisors (see below), whose sum is σ = 2256105600. Its totient is φ = 769618080.

The previous prime is 1327666303. The next prime is 1327666367. The reversal of 1327666329 is 9236667231.

It is not a de Polignac number, because 1327666329 - 2¹¹ = 1327664281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1327666399) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66307 + ... + 83975.

It is an arithmetic number, because the mean of its divisors is an integer number (47002200).

Almost surely, 2^1327666329 is an apocalyptic number.

It is an amenable number.

1327666329 is a deficient number, since it is larger than the sum of its proper divisors (928439271).

1327666329 is a wasteful number, since it uses less digits than its factorization.

1327666329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17723 (or 17706 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 1327666329 is about 36437.1558851675. The cubic root of 1327666329 is about 1099.0808655398.

The spelling of 1327666329 in words is "one billion, three hundred twenty-seven million, six hundred sixty-six thousand, three hundred twenty-nine".