201806066 has 64 divisors (see below), whose sum is σ = 392408064. Its totient is φ = 75556800.

The previous prime is 201806039. The next prime is 201806089. The reversal of 201806066 is 660608102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609521 + ... + 609851.

It is an arithmetic number, because the mean of its divisors is an integer number (6131376).

Almost surely, 2^201806066 is an apocalyptic number.

201806066 is a deficient number, since it is larger than the sum of its proper divisors (190601998).

201806066 is a wasteful number, since it uses less digits than its factorization.

201806066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 201806066 is about 14205.8461909173. The cubic root of 201806066 is about 586.5585983076.

The spelling of 201806066 in words is "two hundred one million, eight hundred six thousand, sixty-six".