201064151666 has 32 divisors (see below), whose sum is σ = 351757036800. Its totient is φ = 86160228000.

The previous prime is 201064151653. The next prime is 201064151711. The reversal of 201064151666 is 666151460102.

It is a happy number.

201064151666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10555571 + ... + 10574601.

It is an arithmetic number, because the mean of its divisors is an integer number (10992407400).

Almost surely, 2^201064151666 is an apocalyptic number.

201064151666 is a deficient number, since it is larger than the sum of its proper divisors (150692885134).

201064151666 is a wasteful number, since it uses less digits than its factorization.

201064151666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34455 (or 34441 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 201064151666 in words is "two hundred one billion, sixty-four million, one hundred fifty-one thousand, six hundred sixty-six".