4001445811201 has 4 divisors (see below), whose sum is σ = 4023553246804. Its totient is φ = 3979338375600.

The previous prime is 4001445811169. The next prime is 4001445811211. The reversal of 4001445811201 is 1021185441004.

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 477280631025 + 3524165180176 = 690855^2 + 1877276^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001445811201 - 2⁵ = 4001445811169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001445811211) 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, 11053717530 + ... + 11053717891.

It is an arithmetic number, because the mean of its divisors is an integer number (1005888311701).

Almost surely, 2^{4001445811201} is an apocalyptic number.

It is an amenable number.

4001445811201 is a deficient number, since it is larger than the sum of its proper divisors (22107435603).

4001445811201 is a wasteful number, since it uses less digits than its factorization.

4001445811201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22107435602.

The product of its (nonzero) digits is 5120, while the sum is 31.

The spelling of 4001445811201 in words is "four trillion, one billion, four hundred forty-five million, eight hundred eleven thousand, two hundred one".