11729666 has 32 divisors (see below), whose sum is σ = 19822320. Its totient is φ = 5170176.

The previous prime is 11729633. The next prime is 11729681. The reversal of 11729666 is 66692711.

11729666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4818025 + 6911641 = 2195^2 + 2629^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85550 + ... + 85686.

Almost surely, 2^11729666 is an apocalyptic number.

11729666 is a deficient number, since it is larger than the sum of its proper divisors (8092654).

11729666 is a wasteful number, since it uses less digits than its factorization.

11729666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its digits is 27216, while the sum is 38.

The square root of 11729666 is about 3424.8599971386. The cubic root of 11729666 is about 227.2105791088.

The spelling of 11729666 in words is "eleven million, seven hundred twenty-nine thousand, six hundred sixty-six".