163434163633406 has 32 divisors (see below), whose sum is σ = 258473402818560. Its totient is φ = 77389543627200.

The previous prime is 163434163633379. The next prime is 163434163633427. The reversal of 163434163633406 is 604336361434361.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22066055 + ... + 28526813.

It is an arithmetic number, because the mean of its divisors is an integer number (8077293838080).

Almost surely, 2^{163434163633406} is an apocalyptic number.

163434163633406 is a deficient number, since it is larger than the sum of its proper divisors (95039239185154).

163434163633406 is a wasteful number, since it uses less digits than its factorization.

163434163633406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469520.

The product of its (nonzero) digits is 20155392, while the sum is 53.

The spelling of 163434163633406 in words is "one hundred sixty-three trillion, four hundred thirty-four billion, one hundred sixty-three million, six hundred thirty-three thousand, four hundred six".