201166671 has 16 divisors (see below), whose sum is σ = 280350720. Its totient is φ = 128066400.

The previous prime is 201166663. The next prime is 201166681. The reversal of 201166671 is 176661102.

It is not a de Polignac number, because 201166671 - 2³ = 201166663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201166621) 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, 46290 + ... + 50448.

It is an arithmetic number, because the mean of its divisors is an integer number (17521920).

Almost surely, 2^201166671 is an apocalyptic number.

201166671 is a deficient number, since it is larger than the sum of its proper divisors (79184049).

201166671 is a wasteful number, since it uses less digits than its factorization.

201166671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 201166671 is about 14183.3236936904. The cubic root of 201166671 is about 585.9384659341.

The spelling of 201166671 in words is "two hundred one million, one hundred sixty-six thousand, six hundred seventy-one".