4066446646201 has 4 divisors (see below), whose sum is σ = 4066489442304. Its totient is φ = 4066403850100.

The previous prime is 4066446646189. The next prime is 4066446646219. The reversal of 4066446646201 is 1026466446604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4066446646201 - 2⁵ = 4066446646169 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4066446646271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21255205 + ... + 21445666.

It is an arithmetic number, because the mean of its divisors is an integer number (1016622360576).

Almost surely, 2^{4066446646201} is an apocalyptic number.

It is an amenable number.

4066446646201 is a deficient number, since it is larger than the sum of its proper divisors (42796103).

4066446646201 is an equidigital number, since it uses as much as digits as its factorization.

4066446646201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42796102.

The product of its (nonzero) digits is 3981312, while the sum is 49.

The spelling of 4066446646201 in words is "four trillion, sixty-six billion, four hundred forty-six million, six hundred forty-six thousand, two hundred one".