6418353656801 has 2 divisors, whose sum is σ = 6418353656802. Its totient is φ = 6418353656800.

The previous prime is 6418353656783. The next prime is 6418353656893. The reversal of 6418353656801 is 1086563538146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5851681950625 + 566671706176 = 2419025^2 + 752776^2 .

It is a cyclic number.

It is not a de Polignac number, because 6418353656801 - 2³⁸ = 6143475749857 is a prime.

It is not a weakly prime, because it can be changed into another prime (6418353256801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3209176828400 + 3209176828401.

It is an arithmetic number, because the mean of its divisors is an integer number (3209176828401).

Almost surely, 2^{6418353656801} is an apocalyptic number.

It is an amenable number.

6418353656801 is a deficient number, since it is larger than the sum of its proper divisors (1).

6418353656801 is an equidigital number, since it uses as much as digits as its factorization.

6418353656801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 6418353656801 in words is "six trillion, four hundred eighteen billion, three hundred fifty-three million, six hundred fifty-six thousand, eight hundred one".