2646207022801 has 2 divisors, whose sum is σ = 2646207022802. Its totient is φ = 2646207022800.

The previous prime is 2646207022799. The next prime is 2646207022853. The reversal of 2646207022801 is 1082207026462.

2646207022801 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2009019925201 + 637187097600 = 1417399^2 + 798240^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646207022801 - 2¹ = 2646207022799 is a prime.

Together with 2646207022799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2646207022861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323103511400 + 1323103511401.

It is an arithmetic number, because the mean of its divisors is an integer number (1323103511401).

Almost surely, 2^{2646207022801} is an apocalyptic number.

It is an amenable number.

2646207022801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646207022801 is an equidigital number, since it uses as much as digits as its factorization.

2646207022801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 2646207022801 in words is "two trillion, six hundred forty-six billion, two hundred seven million, twenty-two thousand, eight hundred one".