1669334999 has 8 divisors (see below), whose sum is σ = 1692252048. Its totient is φ = 1646573760.

The previous prime is 1669334993. The next prime is 1669335007. The reversal of 1669334999 is 9994339661.

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

It is a cyclic number.

It is not a de Polignac number, because 1669334999 - 2¹⁶ = 1669269463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669334993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17297 + ... + 60314.

It is an arithmetic number, because the mean of its divisors is an integer number (211531506).

Almost surely, 2^1669334999 is an apocalyptic number.

1669334999 is a deficient number, since it is larger than the sum of its proper divisors (22917049).

1669334999 is a wasteful number, since it uses less digits than its factorization.

1669334999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77905.

The product of its digits is 8503056, while the sum is 59.

The square root of 1669334999 is about 40857.4962399802. The cubic root of 1669334999 is about 1186.2634956898.

The spelling of 1669334999 in words is "one billion, six hundred sixty-nine million, three hundred thirty-four thousand, nine hundred ninety-nine".