166110231 has 16 divisors (see below), whose sum is σ = 261849600. Its totient is φ = 91646688.

The previous prime is 166110221. The next prime is 166110271. The reversal of 166110231 is 132011661.

166110231 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 166110231 - 2⁶ = 166110167 is a prime.

It is a super-2 number, since 2×166110231² = 55185217685746722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 166110198 and 166110207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166110221) 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, 135771 + ... + 136988.

It is an arithmetic number, because the mean of its divisors is an integer number (16365600).

Almost surely, 2^166110231 is an apocalyptic number.

166110231 is a deficient number, since it is larger than the sum of its proper divisors (95739369).

166110231 is a wasteful number, since it uses less digits than its factorization.

166110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272798.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 166110231 is about 12888.3758092321. The cubic root of 166110231 is about 549.7080886222.

Adding to 166110231 its reverse (132011661), we get a palindrome (298121892).

The spelling of 166110231 in words is "one hundred sixty-six million, one hundred ten thousand, two hundred thirty-one".