163660434364 has 24 divisors (see below), whose sum is σ = 330217519968. Its totient is φ = 69519475200.

The previous prime is 163660434227. The next prime is 163660434397. The reversal of 163660434364 is 463434066361.

163660434364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25859737 + ... + 25866064.

It is an arithmetic number, because the mean of its divisors is an integer number (13759063332).

Almost surely, 2^163660434364 is an apocalyptic number.

163660434364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163660434364 is an abundant number, since it is smaller than the sum of its proper divisors (166557085604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163660434364 is a wasteful number, since it uses less digits than its factorization.

163660434364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51725925 (or 51725923 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 46.

The spelling of 163660434364 in words is "one hundred sixty-three billion, six hundred sixty million, four hundred thirty-four thousand, three hundred sixty-four".