201306500666 has 16 divisors (see below), whose sum is σ = 315202648320. Its totient is φ = 96311915040.

The previous prime is 201306500663. The next prime is 201306500701. The reversal of 201306500666 is 666005603102.

201306500666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (201306500663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18235376 + ... + 18246411.

It is an arithmetic number, because the mean of its divisors is an integer number (19700165520).

Almost surely, 2^201306500666 is an apocalyptic number.

201306500666 is a deficient number, since it is larger than the sum of its proper divisors (113896147654).

201306500666 is a wasteful number, since it uses less digits than its factorization.

201306500666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36481909.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 201306500666 in words is "two hundred one billion, three hundred six million, five hundred thousand, six hundred sixty-six".