6456807801161 has 2 divisors, whose sum is σ = 6456807801162. Its totient is φ = 6456807801160.

The previous prime is 6456807801133. The next prime is 6456807801193. The reversal of 6456807801161 is 1611087086546.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3606049081600 + 2850758719561 = 1898960^2 + 1688419^2 .

It is a cyclic number.

It is not a de Polignac number, because 6456807801161 - 2⁶ = 6456807801097 is a prime.

It is a super-2 number, since 2×6456807801161² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6456807806161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228403900580 + 3228403900581.

It is an arithmetic number, because the mean of its divisors is an integer number (3228403900581).

Almost surely, 2^{6456807801161} is an apocalyptic number.

It is an amenable number.

6456807801161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6456807801161 is an equidigital number, since it uses as much as digits as its factorization.

6456807801161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 6456807801161 in words is "six trillion, four hundred fifty-six billion, eight hundred seven million, eight hundred one thousand, one hundred sixty-one".