6669616 has 10 divisors (see below), whose sum is σ = 12922412. Its totient is φ = 3334800.

The previous prime is 6669587. The next prime is 6669617. The reversal of 6669616 is 6169666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6669617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208410 + ... + 208441.

Almost surely, 2^6669616 is an apocalyptic number.

It is an amenable number.

6669616 is a deficient number, since it is larger than the sum of its proper divisors (6252796).

6669616 is a wasteful number, since it uses less digits than its factorization.

6669616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416859 (or 416853 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The square root of 6669616 is about 2582.5599702621. The cubic root of 6669616 is about 188.2349559737.

The spelling of 6669616 in words is "six million, six hundred sixty-nine thousand, six hundred sixteen".