166112771 has 16 divisors (see below), whose sum is σ = 186278400. Its totient is φ = 146817600.

The previous prime is 166112743. The next prime is 166112773. The reversal of 166112771 is 177211661.

166112771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166112771 - 2²² = 161918467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166112773) 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, 197570 + ... + 198408.

It is an arithmetic number, because the mean of its divisors is an integer number (11642400).

Almost surely, 2^166112771 is an apocalyptic number.

166112771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

166112771 is a deficient number, since it is larger than the sum of its proper divisors (20165629).

166112771 is a wasteful number, since it uses less digits than its factorization.

166112771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330.

The product of its digits is 3528, while the sum is 32.

The square root of 166112771 is about 12888.4743472608. The cubic root of 166112771 is about 549.7108904794.

The spelling of 166112771 in words is "one hundred sixty-six million, one hundred twelve thousand, seven hundred seventy-one".