163430436911 has 8 divisors (see below), whose sum is σ = 190589431200. Its totient is φ = 140083231344.

The previous prime is 163430436907. The next prime is 163430436919. The reversal of 163430436911 is 119634034361.

It is not a de Polignac number, because 163430436911 - 2² = 163430436907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163430436919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238236446 + ... + 238237131.

It is an arithmetic number, because the mean of its divisors is an integer number (23823678900).

Almost surely, 2^163430436911 is an apocalyptic number.

163430436911 is a deficient number, since it is larger than the sum of its proper divisors (27158994289).

163430436911 is an frugal number, since it uses more digits than its factorization.

163430436911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476473598 (or 476473584 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 163430436911 in words is "one hundred sixty-three billion, four hundred thirty million, four hundred thirty-six thousand, nine hundred eleven".