201146173161 has 32 divisors (see below), whose sum is σ = 293536309248. Its totient is φ = 121969393920.

The previous prime is 201146173159. The next prime is 201146173177. The reversal of 201146173161 is 161371641102.

It is not a de Polignac number, because 201146173161 - 2¹ = 201146173159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201146173121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1061886 + ... + 1236888.

It is an arithmetic number, because the mean of its divisors is an integer number (9173009664).

Almost surely, 2^201146173161 is an apocalyptic number.

It is an amenable number.

201146173161 is a deficient number, since it is larger than the sum of its proper divisors (92390136087).

201146173161 is a wasteful number, since it uses less digits than its factorization.

201146173161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175781.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 201146173161 in words is "two hundred one billion, one hundred forty-six million, one hundred seventy-three thousand, one hundred sixty-one".