402634566163 has 2 divisors, whose sum is σ = 402634566164. Its totient is φ = 402634566162.

The previous prime is 402634566161. The next prime is 402634566167. The reversal of 402634566163 is 361665436204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402634566163 - 2¹ = 402634566161 is a prime.

It is a super-2 number, since 2×402634566163² (a number of 24 digits) contains 22 as substring.

Together with 402634566161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (402634566161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201317283081 + 201317283082.

It is an arithmetic number, because the mean of its divisors is an integer number (201317283082).

Almost surely, 2^402634566163 is an apocalyptic number.

402634566163 is a deficient number, since it is larger than the sum of its proper divisors (1).

402634566163 is an equidigital number, since it uses as much as digits as its factorization.

402634566163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 402634566163 in words is "four hundred two billion, six hundred thirty-four million, five hundred sixty-six thousand, one hundred sixty-three".