5966665 has 16 divisors (see below), whose sum is σ = 7600320. Its totient is φ = 4484160.

The previous prime is 5966659. The next prime is 5966669. The reversal of 5966665 is 5666695.

It is not a de Polignac number, because 5966665 - 2⁷ = 5966537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5966669) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 17022 + ... + 17368.

It is an arithmetic number, because the mean of its divisors is an integer number (475020).

Almost surely, 2^5966665 is an apocalyptic number.

It is an amenable number.

5966665 is a deficient number, since it is larger than the sum of its proper divisors (1633655).

5966665 is a wasteful number, since it uses less digits than its factorization.

5966665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 291600, while the sum is 43.

The square root of 5966665 is about 2442.6757869189. The cubic root of 5966665 is about 181.3749134962.

The spelling of 5966665 in words is "five million, nine hundred sixty-six thousand, six hundred sixty-five".