166646428284 has 36 divisors (see below), whose sum is σ = 452326021224. Its totient is φ = 47613265056.

The previous prime is 166646428253. The next prime is 166646428297. The reversal of 166646428284 is 482824646661.

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 11 ways as a sum of consecutive naturals, for example, 141705559 + ... + 141706734.

Almost surely, 2^166646428284 is an apocalyptic number.

166646428284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166646428284 is an abundant number, since it is smaller than the sum of its proper divisors (285679592940).

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

166646428284 is a wasteful number, since it uses less digits than its factorization.

166646428284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283412314 (or 283412305 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 57.

The spelling of 166646428284 in words is "one hundred sixty-six billion, six hundred forty-six million, four hundred twenty-eight thousand, two hundred eighty-four".