6669662469 has 32 divisors (see below), whose sum is σ = 9370650240. Its totient is φ = 4213574400.

The previous prime is 6669662459. The next prime is 6669662491. The reversal of 6669662469 is 9642669666.

It is not a de Polignac number, because 6669662469 - 2¹⁹ = 6669138181 is a prime.

It is a super-2 number, since 2×6669662469² = 88968794900774351922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669662449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3114139 + ... + 3116279.

It is an arithmetic number, because the mean of its divisors is an integer number (292832820).

Almost surely, 2^6669662469 is an apocalyptic number.

It is an amenable number.

6669662469 is a deficient number, since it is larger than the sum of its proper divisors (2700987771).

6669662469 is a wasteful number, since it uses less digits than its factorization.

6669662469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821.

The product of its digits is 30233088, while the sum is 60.

The square root of 6669662469 is about 81668.0014999755. The cubic root of 6669662469 is about 1882.3539313375.

The spelling of 6669662469 in words is "six billion, six hundred sixty-nine million, six hundred sixty-two thousand, four hundred sixty-nine".