669006911 has 8 divisors (see below), whose sum is σ = 700047360. Its totient is φ = 638129272.

The previous prime is 669006889. The next prime is 669006941. The reversal of 669006911 is 119600966.

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 669006911 - 2²² = 664812607 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 (669006941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32255 + ... + 48768.

It is an arithmetic number, because the mean of its divisors is an integer number (87505920).

Almost surely, 2^669006911 is an apocalyptic number.

669006911 is a deficient number, since it is larger than the sum of its proper divisors (31040449).

669006911 is a wasteful number, since it uses less digits than its factorization.

669006911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81405.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 669006911 is about 25865.1679097585. The cubic root of 669006911 is about 874.6014668356.

The spelling of 669006911 in words is "six hundred sixty-nine million, six thousand, nine hundred eleven".