166668518336 has 112 divisors (see below), whose sum is σ = 342128831616. Its totient is φ = 80515620864.

The previous prime is 166668518287. The next prime is 166668518411. The reversal of 166668518336 is 633815866661.

166668518336 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 15 ways as a sum of consecutive naturals, for example, 81181886 + ... + 81183938.

Almost surely, 2^166668518336 is an apocalyptic number.

166668518336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166668518336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171064415808).

166668518336 is an abundant number, since it is smaller than the sum of its proper divisors (175460313280).

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

166668518336 is a wasteful number, since it uses less digits than its factorization.

166668518336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446 (or 2436 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 59.

The spelling of 166668518336 in words is "one hundred sixty-six billion, six hundred sixty-eight million, five hundred eighteen thousand, three hundred thirty-six".