65999902022201 has 32 divisors (see below), whose sum is σ = 79312386041856. Its totient is φ = 53696214000000.

The previous prime is 65999902022081. The next prime is 65999902022227. The reversal of 65999902022201 is 10222020999956.

65999902022201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-65999902022201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65999902022401) 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 31 ways as a sum of consecutive naturals, for example, 573849701 + ... + 573964701.

It is an arithmetic number, because the mean of its divisors is an integer number (2478512063808).

Almost surely, 2^{65999902022201} is an apocalyptic number.

It is an amenable number.

65999902022201 is a deficient number, since it is larger than the sum of its proper divisors (13312484019655).

65999902022201 is a wasteful number, since it uses less digits than its factorization.

65999902022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142373.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 65999902022201 in words is "sixty-five trillion, nine hundred ninety-nine billion, nine hundred two million, twenty-two thousand, two hundred one".