669140795 has 16 divisors (see below), whose sum is σ = 810881280. Its totient is φ = 530056800.

The previous prime is 669140767. The next prime is 669140807. The reversal of 669140795 is 597041966.

It is not a de Polignac number, because 669140795 - 2¹⁶ = 669075259 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 412496 + ... + 414114.

It is an arithmetic number, because the mean of its divisors is an integer number (50680080).

Almost surely, 2^669140795 is an apocalyptic number.

669140795 is a deficient number, since it is larger than the sum of its proper divisors (141740485).

669140795 is a wasteful number, since it uses less digits than its factorization.

669140795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 669140795 is about 25867.7558941629. The cubic root of 669140795 is about 874.6598057110.

The spelling of 669140795 in words is "six hundred sixty-nine million, one hundred forty thousand, seven hundred ninety-five".