166100011 has 16 divisors (see below), whose sum is σ = 210486528. Its totient is φ = 127303200.

The previous prime is 166099991. The next prime is 166100029. The reversal of 166100011 is 110001661.

It is a cyclic number.

It is not a de Polignac number, because 166100011 - 2²³ = 157711403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166100041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12985 + ... + 22378.

It is an arithmetic number, because the mean of its divisors is an integer number (13155408).

Almost surely, 2^166100011 is an apocalyptic number.

166100011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

166100011 is a deficient number, since it is larger than the sum of its proper divisors (44386517).

166100011 is a wasteful number, since it uses less digits than its factorization.

166100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35442.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 166100011 is about 12887.9793218332. The cubic root of 166100011 is about 549.6968147192.

Adding to 166100011 its reverse (110001661), we get a palindrome (276101672).

The spelling of 166100011 in words is "one hundred sixty-six million, one hundred thousand, eleven".