163434044603666 has 8 divisors (see below), whose sum is σ = 245165754575664. Its totient is φ = 81712126411780.

The previous prime is 163434044603663. The next prime is 163434044603719. The reversal of 163434044603666 is 666306440434361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163434044603663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2447903300 + ... + 2447970063.

It is an arithmetic number, because the mean of its divisors is an integer number (30645719321958).

Almost surely, 2^{163434044603666} is an apocalyptic number.

163434044603666 is a deficient number, since it is larger than the sum of its proper divisors (81731709971998).

163434044603666 is a wasteful number, since it uses less digits than its factorization.

163434044603666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895890056.

The product of its (nonzero) digits is 53747712, while the sum is 56.

The spelling of 163434044603666 in words is "one hundred sixty-three trillion, four hundred thirty-four billion, forty-four million, six hundred three thousand, six hundred sixty-six".