201157066 has 32 divisors (see below), whose sum is σ = 348894720. Its totient is φ = 86022000.

The previous prime is 201157051. The next prime is 201157069. The reversal of 201157066 is 660751102.

It is not an unprimeable number, because it can be changed into a prime (201157069) 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, 61525 + ... + 64711.

It is an arithmetic number, because the mean of its divisors is an integer number (10902960).

Almost surely, 2^201157066 is an apocalyptic number.

201157066 is a deficient number, since it is larger than the sum of its proper divisors (147737654).

201157066 is a wasteful number, since it uses less digits than its factorization.

201157066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 201157066 is about 14182.9850877733. The cubic root of 201157066 is about 585.9291402863.

The spelling of 201157066 in words is "two hundred one million, one hundred fifty-seven thousand, sixty-six".