201598366 has 4 divisors (see below), whose sum is σ = 302397552. Its totient is φ = 100799182.

The previous prime is 201598337. The next prime is 201598367. The reversal of 201598366 is 663895102.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201598367) 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 as a sum of consecutive naturals, namely, 50399590 + ... + 50399593.

It is an arithmetic number, because the mean of its divisors is an integer number (75599388).

Almost surely, 2^201598366 is an apocalyptic number.

201598366 is a deficient number, since it is larger than the sum of its proper divisors (100799186).

201598366 is a wasteful number, since it uses less digits than its factorization.

201598366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100799185.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 201598366 is about 14198.5339384036. The cubic root of 201598366 is about 586.3572993697.

The spelling of 201598366 in words is "two hundred one million, five hundred ninety-eight thousand, three hundred sixty-six".