201552166 has 8 divisors (see below), whose sum is σ = 305321904. Its totient is φ = 99778200.

The previous prime is 201552161. The next prime is 201552167. The reversal of 201552166 is 661255102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201552161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498690 + ... + 499093.

It is an arithmetic number, because the mean of its divisors is an integer number (38165238).

Almost surely, 2^201552166 is an apocalyptic number.

201552166 is a deficient number, since it is larger than the sum of its proper divisors (103769738).

201552166 is a wasteful number, since it uses less digits than its factorization.

201552166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997886.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 201552166 is about 14196.9069166491. The cubic root of 201552166 is about 586.3125044021.

The spelling of 201552166 in words is "two hundred one million, five hundred fifty-two thousand, one hundred sixty-six".