11000611666 has 12 divisors (see below), whose sum is σ = 18137372526. Its totient is φ = 5000277920.

The previous prime is 11000611663. The next prime is 11000611667. The reversal of 11000611666 is 66611600011.

It can be written as a sum of positive squares in only one way, i.e., 10409100625 + 591511041 = 102025^2 + 24321^2 .

It is a super-2 number, since 2×11000611666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11000611663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22728295 + ... + 22728778.

Almost surely, 2^11000611666 is an apocalyptic number.

11000611666 is a deficient number, since it is larger than the sum of its proper divisors (7136760860).

11000611666 is a wasteful number, since it uses less digits than its factorization.

11000611666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457097 (or 45457086 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 11000611666 in words is "eleven billion, six hundred eleven thousand, six hundred sixty-six".