2626201646401 has 4 divisors (see below), whose sum is σ = 2627122800304. Its totient is φ = 2625280492500.

The previous prime is 2626201646381. The next prime is 2626201646407. The reversal of 2626201646401 is 1046461026262.

It is a happy number.

2626201646401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2626201646401 - 2¹³ = 2626201638209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2626201646407) 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, 460572675 + ... + 460578376.

It is an arithmetic number, because the mean of its divisors is an integer number (656780700076).

Almost surely, 2^{2626201646401} is an apocalyptic number.

It is an amenable number.

2626201646401 is a deficient number, since it is larger than the sum of its proper divisors (921153903).

2626201646401 is an equidigital number, since it uses as much as digits as its factorization.

2626201646401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921153902.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 2626201646401 in words is "two trillion, six hundred twenty-six billion, two hundred one million, six hundred forty-six thousand, four hundred one".