669617411 has 4 divisors (see below), whose sum is σ = 675760800. Its totient is φ = 663474024.

The previous prime is 669617407. The next prime is 669617441. The reversal of 669617411 is 114716966.

669617411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 669617411 - 2² = 669617407 is a prime.

It is a super-2 number, since 2×669617411² = 896774954228685842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669617441) 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, 3071531 + ... + 3071748.

It is an arithmetic number, because the mean of its divisors is an integer number (168940200).

Almost surely, 2^669617411 is an apocalyptic number.

669617411 is a deficient number, since it is larger than the sum of its proper divisors (6143389).

669617411 is a wasteful number, since it uses less digits than its factorization.

669617411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143388.

The product of its digits is 54432, while the sum is 41.

The square root of 669617411 is about 25876.9668044769. The cubic root of 669617411 is about 874.8674241587.

The spelling of 669617411 in words is "six hundred sixty-nine million, six hundred seventeen thousand, four hundred eleven".