669932194 has 16 divisors (see below), whose sum is σ = 1010221632. Its totient is φ = 333196528.

The previous prime is 669932189. The next prime is 669932257. The reversal of 669932194 is 491239966.

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 7 ways as a sum of consecutive naturals, for example, 575457 + ... + 576619.

It is an arithmetic number, because the mean of its divisors is an integer number (63138852).

Almost surely, 2^669932194 is an apocalyptic number.

669932194 is a deficient number, since it is larger than the sum of its proper divisors (340289438).

669932194 is a wasteful number, since it uses less digits than its factorization.

669932194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441.

The product of its digits is 629856, while the sum is 49.

The square root of 669932194 is about 25883.0483907904. The cubic root of 669932194 is about 875.0044926028.

The spelling of 669932194 in words is "six hundred sixty-nine million, nine hundred thirty-two thousand, one hundred ninety-four".