11666066611 has 8 divisors (see below), whose sum is σ = 12109542480. Its totient is φ = 11225337312.

The previous prime is 11666066597. The next prime is 11666066617.

11666066611 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 11666066611 - 2¹¹ = 11666064563 is a prime.

It is a super-2 number, since 2×11666066611² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11666066617) 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, 677985 + ... + 694978.

It is an arithmetic number, because the mean of its divisors is an integer number (1513692810).

Almost surely, 2^11666066611 is an apocalyptic number.

11666066611 is a deficient number, since it is larger than the sum of its proper divisors (443475869).

11666066611 is a wasteful number, since it uses less digits than its factorization.

11666066611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373285.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 11666066611 in words is "eleven billion, six hundred sixty-six million, sixty-six thousand, six hundred eleven".