11426666 has 4 divisors (see below), whose sum is σ = 17140002. Its totient is φ = 5713332.

The previous prime is 11426663. The next prime is 11426671. The reversal of 11426666 is 66662411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66662411 = 997 ⋅66863.

It can be written as a sum of positive squares in only one way, i.e., 11417641 + 9025 = 3379^2 + 95^2 .

11426666 is a modest number, since divided by 6666 gives 1142 as remainder.

It is not an unprimeable number, because it can be changed into a prime (11426663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2856665 + ... + 2856668.

Almost surely, 2^11426666 is an apocalyptic number.

11426666 is a deficient number, since it is larger than the sum of its proper divisors (5713336).

11426666 is an equidigital number, since it uses as much as digits as its factorization.

11426666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713335.

The product of its digits is 10368, while the sum is 32.

The square root of 11426666 is about 3380.3351904804. The cubic root of 11426666 is about 225.2370571478.

The spelling of 11426666 in words is "eleven million, four hundred twenty-six thousand, six hundred sixty-six".