6661112 has 8 divisors (see below), whose sum is σ = 12489600. Its totient is φ = 3330552.

The previous prime is 6661111. The next prime is 6661117. The reversal of 6661112 is 2111666.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416312 + ... + 416327.

It is an arithmetic number, because the mean of its divisors is an integer number (1561200).

Almost surely, 2^6661112 is an apocalyptic number.

It is an amenable number.

6661112 is a deficient number, since it is larger than the sum of its proper divisors (5828488).

6661112 is a wasteful number, since it uses less digits than its factorization.

6661112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832645 (or 832641 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 6661112 is about 2580.9130167443. The cubic root of 6661112 is about 188.1549198374.

Adding to 6661112 its reverse (2111666), we get a palindrome (8772778).

The spelling of 6661112 in words is "six million, six hundred sixty-one thousand, one hundred twelve".