6566994 has 40 divisors (see below), whose sum is σ = 16819968. Its totient is φ = 1875960.

The previous prime is 6566993. The next prime is 6567013. The reversal of 6566994 is 4996656.

It is not an unprimeable number, because it can be changed into a prime (6566993) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1762 + ... + 4029.

Almost surely, 2^6566994 is an apocalyptic number.

6566994 is an abundant number, since it is smaller than the sum of its proper divisors (10252974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6566994 is a wasteful number, since it uses less digits than its factorization.

6566994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5812 (or 5803 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 6566994 is about 2562.6146803607. The cubic root of 6566994 is about 187.2645364273.

The spelling of 6566994 in words is "six million, five hundred sixty-six thousand, nine hundred ninety-four".