6666245 has 16 divisors (see below), whose sum is σ = 8605440. Its totient is φ = 4941504.

The previous prime is 6666241. The next prime is 6666269. The reversal of 6666245 is 5426666.

6666245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6666245 - 2² = 6666241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3719 + ... + 5211.

It is an arithmetic number, because the mean of its divisors is an integer number (537840).

Almost surely, 2^6666245 is an apocalyptic number.

It is an amenable number.

6666245 is a deficient number, since it is larger than the sum of its proper divisors (1939195).

6666245 is a wasteful number, since it uses less digits than its factorization.

6666245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564.

The product of its digits is 51840, while the sum is 35.

The square root of 6666245 is about 2581.9072407815. The cubic root of 6666245 is about 188.2032376573.

The spelling of 6666245 in words is "six million, six hundred sixty-six thousand, two hundred forty-five".