11666700166 has 16 divisors (see below), whose sum is σ = 19186905600. Its totient is φ = 5276395080.

The previous prime is 11666700163. The next prime is 11666700229. The reversal of 11666700166 is 66100766611.

It is a super-2 number, since 2×11666700166² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666700163) 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, 1328046 + ... + 1336801.

It is an arithmetic number, because the mean of its divisors is an integer number (1199181600).

Almost surely, 2^11666700166 is an apocalyptic number.

11666700166 is a deficient number, since it is larger than the sum of its proper divisors (7520205434).

11666700166 is a wasteful number, since it uses less digits than its factorization.

11666700166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665059.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 11666700166 in words is "eleven billion, six hundred sixty-six million, seven hundred thousand, one hundred sixty-six".