201266745312401 has 4 divisors (see below), whose sum is σ = 201272966305572. Its totient is φ = 201260524319232.

The previous prime is 201266745312389. The next prime is 201266745312421. The reversal of 201266745312401 is 104213547662102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81720424804225 + 119546320508176 = 9039935^2 + 10933724^2 .

It is a cyclic number.

It is not a de Polignac number, because 201266745312401 - 2³⁰ = 201265671570577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201266745312421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3110448056 + ... + 3110512761.

It is an arithmetic number, because the mean of its divisors is an integer number (50318241576393).

Almost surely, 2^{201266745312401} is an apocalyptic number.

It is an amenable number.

201266745312401 is a deficient number, since it is larger than the sum of its proper divisors (6220993171).

201266745312401 is an equidigital number, since it uses as much as digits as its factorization.

201266745312401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220993170.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 201266745312401 in words is "two hundred one trillion, two hundred sixty-six billion, seven hundred forty-five million, three hundred twelve thousand, four hundred one".