166800151656 has 48 divisors (see below), whose sum is σ = 452060325600. Its totient is φ = 55561907232.

The previous prime is 166800151571. The next prime is 166800151663. The reversal of 166800151656 is 656151008661.

166800151656 is a `hidden beast` number, since 1 + 6 + 6 + 80 + 0 + 1 + 516 + 56 = 666.

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, 688876 + ... + 898971.

It is an arithmetic number, because the mean of its divisors is an integer number (9417923450).

Almost surely, 2^166800151656 is an apocalyptic number.

It is an amenable number.

166800151656 is an abundant number, since it is smaller than the sum of its proper divisors (285260173944).

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

166800151656 is a wasteful number, since it uses less digits than its factorization.

166800151656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589318 (or 1589311 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 166800151656 in words is "one hundred sixty-six billion, eight hundred million, one hundred fifty-one thousand, six hundred fifty-six".