201662045 has 32 divisors (see below), whose sum is σ = 278353152. Its totient is φ = 139087872.

The previous prime is 201662011. The next prime is 201662051. The reversal of 201662045 is 540266102.

It is a cyclic number.

It is not a de Polignac number, because 201662045 - 2⁶ = 201661981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62717 + ... + 65853.

It is an arithmetic number, because the mean of its divisors is an integer number (8698536).

Almost surely, 2^201662045 is an apocalyptic number.

It is an amenable number.

201662045 is a deficient number, since it is larger than the sum of its proper divisors (76691107).

201662045 is a wasteful number, since it uses less digits than its factorization.

201662045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 201662045 is about 14200.7762111794. The cubic root of 201662045 is about 586.4190305509.

The spelling of 201662045 in words is "two hundred one million, six hundred sixty-two thousand, forty-five".