669140303 has 4 divisors (see below), whose sum is σ = 720612648. Its totient is φ = 617667960.

The previous prime is 669140237. The next prime is 669140327. The reversal of 669140303 is 303041966.

It is a happy number.

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

It is not a de Polignac number, because 669140303 - 2¹⁴ = 669123919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 669140303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669140333) 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, 25736153 + ... + 25736178.

It is an arithmetic number, because the mean of its divisors is an integer number (180153162).

Almost surely, 2^669140303 is an apocalyptic number.

669140303 is a deficient number, since it is larger than the sum of its proper divisors (51472345).

669140303 is a wasteful number, since it uses less digits than its factorization.

669140303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51472344.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 669140303 is about 25867.7463842523. The cubic root of 669140303 is about 874.6595913402.

The spelling of 669140303 in words is "six hundred sixty-nine million, one hundred forty thousand, three hundred three".