1163666 has 16 divisors (see below), whose sum is σ = 2042304. Its totient is φ = 486864.

The previous prime is 1163663. The next prime is 1163671. The reversal of 1163666 is 6663611.

It is not an unprimeable number, because it can be changed into a prime (1163663) 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, 365 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (127644).

2^1163666 is an apocalyptic number.

1163666 is a deficient number, since it is larger than the sum of its proper divisors (878638).

1163666 is a wasteful number, since it uses less digits than its factorization.

1163666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985.

The product of its digits is 3888, while the sum is 29.

The square root of 1163666 is about 1078.7335166759. The cubic root of 1163666 is about 105.1823287122.

Subtracting 1163666 from its reverse (6663611), we obtain a palindrome (5499945).

The spelling of 1163666 in words is "one million, one hundred sixty-three thousand, six hundred sixty-six".