6669159 has 32 divisors (see below), whose sum is σ = 10782720. Its totient is φ = 3585792.

The previous prime is 6669137. The next prime is 6669161. The reversal of 6669159 is 9519666.

It is not a de Polignac number, because 6669159 - 2⁸ = 6668903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6669159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28507 + ... + 28739.

It is an arithmetic number, because the mean of its divisors is an integer number (336960).

Almost surely, 2^6669159 is an apocalyptic number.

6669159 is a deficient number, since it is larger than the sum of its proper divisors (4113561).

6669159 is a wasteful number, since it uses less digits than its factorization.

6669159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319.

The product of its digits is 87480, while the sum is 42.

The square root of 6669159 is about 2582.4714906461. The cubic root of 6669159 is about 188.2306566087.

The spelling of 6669159 in words is "six million, six hundred sixty-nine thousand, one hundred fifty-nine".