6661146 has 16 divisors (see below), whose sum is σ = 13574304. Its totient is φ = 2178384.

The previous prime is 6661141. The next prime is 6661157. The reversal of 6661146 is 6411666.

It is not an unprimeable number, because it can be changed into a prime (6661141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10156 + ... + 10791.

It is an arithmetic number, because the mean of its divisors is an integer number (848394).

Almost surely, 2^6661146 is an apocalyptic number.

6661146 is an abundant number, since it is smaller than the sum of its proper divisors (6913158).

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

6661146 is a wasteful number, since it uses less digits than its factorization.

6661146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21005.

The product of its digits is 5184, while the sum is 30.

The square root of 6661146 is about 2580.9196035522. The cubic root of 6661146 is about 188.1552399669.

The spelling of 6661146 in words is "six million, six hundred sixty-one thousand, one hundred forty-six".