201455166 has 16 divisors (see below), whose sum is σ = 439538688. Its totient is φ = 61047000.

The previous prime is 201455159. The next prime is 201455171. The reversal of 201455166 is 661554102.

201455166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526110 + ... + 1526241.

It is an arithmetic number, because the mean of its divisors is an integer number (27471168).

Almost surely, 2^201455166 is an apocalyptic number.

201455166 is an abundant number, since it is smaller than the sum of its proper divisors (238083522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201455166 is a wasteful number, since it uses less digits than its factorization.

201455166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052367.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 201455166 is about 14193.4902684294. The cubic root of 201455166 is about 586.2184320831.

The spelling of 201455166 in words is "two hundred one million, four hundred fifty-five thousand, one hundred sixty-six".