11156668 has 6 divisors (see below), whose sum is σ = 19524176. Its totient is φ = 5578332.

The previous prime is 11156657. The next prime is 11156669. The reversal of 11156668 is 86665111.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156669) 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, 1394580 + ... + 1394587.

Almost surely, 2^11156668 is an apocalyptic number.

It is an amenable number.

11156668 is a deficient number, since it is larger than the sum of its proper divisors (8367508).

11156668 is a wasteful number, since it uses less digits than its factorization.

11156668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789171 (or 2789169 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 11156668 is about 3340.1598764131. The cubic root of 11156668 is about 223.4488736578.

The spelling of 11156668 in words is "eleven million, one hundred fifty-six thousand, six hundred sixty-eight".