166100010111 has 24 divisors (see below), whose sum is σ = 274429138464. Its totient is φ = 94833881280.

The previous prime is 166100010107. The next prime is 166100010163. The reversal of 166100010111 is 111010001661.

166100010111 is a `hidden beast` number, since 1 + 661 + 0 + 0 + 0 + 1 + 0 + 1 + 1 + 1 = 666.

166100010111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166100010111 - 2² = 166100010107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166100010911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041816 + ... + 1190621.

It is an arithmetic number, because the mean of its divisors is an integer number (11434547436).

Almost surely, 2^166100010111 is an apocalyptic number.

166100010111 is a deficient number, since it is larger than the sum of its proper divisors (108329128353).

166100010111 is a wasteful number, since it uses less digits than its factorization.

166100010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233631 (or 2233628 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 166100010111 its reverse (111010001661), we get a palindrome (277110011772).

The spelling of 166100010111 in words is "one hundred sixty-six billion, one hundred million, ten thousand, one hundred eleven".