11780666 has 8 divisors (see below), whose sum is σ = 17692020. Its totient is φ = 5883328.

The previous prime is 11780617. The next prime is 11780687. The reversal of 11780666 is 66608711.

11780666 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 2 ways, for example, as 8791225 + 2989441 = 2965^2 + 1729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061 + ... + 4968.

Almost surely, 2^11780666 is an apocalyptic number.

11780666 is a deficient number, since it is larger than the sum of its proper divisors (5911354).

11780666 is an equidigital number, since it uses as much as digits as its factorization.

11780666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 11780666 is about 3432.2974812798. The cubic root of 11780666 is about 227.5394030691.

The spelling of 11780666 in words is "eleven million, seven hundred eighty thousand, six hundred sixty-six".