163504050225431 has 2 divisors, whose sum is σ = 163504050225432. Its totient is φ = 163504050225430.

The previous prime is 163504050225349. The next prime is 163504050225479. The reversal of 163504050225431 is 134522050405361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163504050225431 - 2¹⁴ = 163504050209047 is a prime.

It is a super-2 number, since 2×163504050225431² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163504050225491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81752025112715 + 81752025112716.

It is an arithmetic number, because the mean of its divisors is an integer number (81752025112716).

Almost surely, 2^{163504050225431} is an apocalyptic number.

163504050225431 is a deficient number, since it is larger than the sum of its proper divisors (1).

163504050225431 is an equidigital number, since it uses as much as digits as its factorization.

163504050225431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 163504050225431 in words is "one hundred sixty-three trillion, five hundred four billion, fifty million, two hundred twenty-five thousand, four hundred thirty-one".