166668518335 has 32 divisors (see below), whose sum is σ = 218648263680. Its totient is φ = 120956035200.

The previous prime is 166668518287. The next prime is 166668518411. The reversal of 166668518335 is 533815866661.

It is a de Polignac number, because none of the positive numbers 2^k-166668518335 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166668518335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83208444 + ... + 83210446.

It is an arithmetic number, because the mean of its divisors is an integer number (6832758240).

Almost surely, 2^166668518335 is an apocalyptic number.

166668518335 is a deficient number, since it is larger than the sum of its proper divisors (51979745345).

166668518335 is a wasteful number, since it uses less digits than its factorization.

166668518335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479.

The product of its digits is 18662400, while the sum is 58.

The spelling of 166668518335 in words is "one hundred sixty-six billion, six hundred sixty-eight million, five hundred eighteen thousand, three hundred thirty-five".