201670066 has 48 divisors (see below), whose sum is σ = 356279040. Its totient is φ = 85250880.

The previous prime is 201670039. The next prime is 201670181. The reversal of 201670066 is 660076102.

201670066 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 198576 + ... + 199588.

It is an arithmetic number, because the mean of its divisors is an integer number (7422480).

Almost surely, 2^201670066 is an apocalyptic number.

201670066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

201670066 is a deficient number, since it is larger than the sum of its proper divisors (154608974).

201670066 is a wasteful number, since it uses less digits than its factorization.

201670066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 201670066 is about 14201.0586225112. The cubic root of 201670066 is about 586.4268052823.

The spelling of 201670066 in words is "two hundred one million, six hundred seventy thousand, sixty-six".