669241695 has 64 divisors (see below), whose sum is σ = 1152921600. Its totient is φ = 330705408.

The previous prime is 669241691. The next prime is 669241721. The reversal of 669241695 is 596142966.

It is not a de Polignac number, because 669241695 - 2² = 669241691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669241691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2415897 + ... + 2416173.

It is an arithmetic number, because the mean of its divisors is an integer number (18014400).

Almost surely, 2^669241695 is an apocalyptic number.

669241695 is a deficient number, since it is larger than the sum of its proper divisors (483679905).

669241695 is a wasteful number, since it uses less digits than its factorization.

669241695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its digits is 699840, while the sum is 48.

The square root of 669241695 is about 25869.7061251186. The cubic root of 669241695 is about 874.7037669319.

The spelling of 669241695 in words is "six hundred sixty-nine million, two hundred forty-one thousand, six hundred ninety-five".