6294866657161 has 2 divisors, whose sum is σ = 6294866657162. Its totient is φ = 6294866657160.

The previous prime is 6294866657153. The next prime is 6294866657197. The reversal of 6294866657161 is 1617566684926.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3534234561936 + 2760632095225 = 1879956^2 + 1661515^2 .

It is a cyclic number.

It is not a de Polignac number, because 6294866657161 - 2³ = 6294866657153 is a prime.

It is not a weakly prime, because it can be changed into another prime (6294866657461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3147433328580 + 3147433328581.

It is an arithmetic number, because the mean of its divisors is an integer number (3147433328581).

Almost surely, 2^{6294866657161} is an apocalyptic number.

It is an amenable number.

6294866657161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6294866657161 is an equidigital number, since it uses as much as digits as its factorization.

6294866657161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 67.

The spelling of 6294866657161 in words is "six trillion, two hundred ninety-four billion, eight hundred sixty-six million, six hundred fifty-seven thousand, one hundred sixty-one".