201166394 has 16 divisors (see below), whose sum is σ = 354503520. Its totient is φ = 84405360.

The previous prime is 201166393. The next prime is 201166403. The reversal of 201166394 is 493661102.

201166394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201166394.

It is not an unprimeable number, because it can be changed into a prime (201166391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351404 + ... + 351975.

It is an arithmetic number, because the mean of its divisors is an integer number (22156470).

Almost surely, 2^201166394 is an apocalyptic number.

201166394 is a deficient number, since it is larger than the sum of its proper divisors (153337126).

201166394 is a wasteful number, since it uses less digits than its factorization.

201166394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703405.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 201166394 is about 14183.3139286980. The cubic root of 201166394 is about 585.9381969945.

The spelling of 201166394 in words is "two hundred one million, one hundred sixty-six thousand, three hundred ninety-four".