6659122 has 4 divisors (see below), whose sum is σ = 9988686. Its totient is φ = 3329560.

The previous prime is 6659113. The next prime is 6659201. The reversal of 6659122 is 2219566.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2219566 = 2 ⋅1109783.

It can be written as a sum of positive squares in only one way, i.e., 3806401 + 2852721 = 1951^2 + 1689^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664779 + ... + 1664782.

Almost surely, 2^6659122 is an apocalyptic number.

6659122 is a deficient number, since it is larger than the sum of its proper divisors (3329564).

6659122 is a wasteful number, since it uses less digits than its factorization.

6659122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329563.

The product of its digits is 6480, while the sum is 31.

The square root of 6659122 is about 2580.5274654613. The cubic root of 6659122 is about 188.1361809449.

The spelling of 6659122 in words is "six million, six hundred fifty-nine thousand, one hundred twenty-two".