420156436163 has 2 divisors, whose sum is σ = 420156436164. Its totient is φ = 420156436162.

The previous prime is 420156436157. The next prime is 420156436181. The reversal of 420156436163 is 361634651024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420156436163 - 2¹⁴ = 420156419779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420156436163.

It is not a weakly prime, because it can be changed into another prime (420156436363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210078218081 + 210078218082.

It is an arithmetic number, because the mean of its divisors is an integer number (210078218082).

Almost surely, 2^420156436163 is an apocalyptic number.

420156436163 is a deficient number, since it is larger than the sum of its proper divisors (1).

420156436163 is an equidigital number, since it uses as much as digits as its factorization.

420156436163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 420156436163 in words is "four hundred twenty billion, one hundred fifty-six million, four hundred thirty-six thousand, one hundred sixty-three".