366665636201 has 16 divisors (see below), whose sum is σ = 390773937600. Its totient is φ = 343047817728.

The previous prime is 366665636189. The next prime is 366665636231. The reversal of 366665636201 is 102636566663.

It is a cyclic number.

It is not a de Polignac number, because 366665636201 - 2²² = 366661441897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 366665636201.

It is not an unprimeable number, because it can be changed into a prime (366665636231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1267361 + ... + 1529553.

It is an arithmetic number, because the mean of its divisors is an integer number (24423371100).

Almost surely, 2^366665636201 is an apocalyptic number.

It is an amenable number.

366665636201 is a deficient number, since it is larger than the sum of its proper divisors (24108301399).

366665636201 is a wasteful number, since it uses less digits than its factorization.

366665636201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263128.

The product of its (nonzero) digits is 4199040, while the sum is 50.

The spelling of 366665636201 in words is "three hundred sixty-six billion, six hundred sixty-five million, six hundred thirty-six thousand, two hundred one".