669026005 has 8 divisors (see below), whose sum is σ = 845085600. Its totient is φ = 507051216.

The previous prime is 669025997. The next prime is 669026009. The reversal of 669026005 is 500620966.

669026005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 669026005 - 2³ = 669025997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669026009) 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, 3521095 + ... + 3521284.

It is an arithmetic number, because the mean of its divisors is an integer number (105635700).

Almost surely, 2^669026005 is an apocalyptic number.

It is an amenable number.

669026005 is a deficient number, since it is larger than the sum of its proper divisors (176059595).

669026005 is a wasteful number, since it uses less digits than its factorization.

669026005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042403.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 669026005 is about 25865.5370135630. The cubic root of 669026005 is about 874.6097873682.

The spelling of 669026005 in words is "six hundred sixty-nine million, twenty-six thousand, five".