6570166 has 4 divisors (see below), whose sum is σ = 9855252. Its totient is φ = 3285082.

The previous prime is 6570149. The next prime is 6570169. The reversal of 6570166 is 6610756.

It is a semiprime because it is the product of two primes.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6570169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1642540 + ... + 1642543.

It is an arithmetic number, because the mean of its divisors is an integer number (2463813).

Almost surely, 2^6570166 is an apocalyptic number.

6570166 is a deficient number, since it is larger than the sum of its proper divisors (3285086).

6570166 is a wasteful number, since it uses less digits than its factorization.

6570166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285085.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 6570166 is about 2563.2335047748. The cubic root of 6570166 is about 187.2946825132.

The spelling of 6570166 in words is "six million, five hundred seventy thousand, one hundred sixty-six".