166800303316656 has 160 divisors (see below), whose sum is σ = 489873132184320. Its totient is φ = 54325945852416.

The previous prime is 166800303316649. The next prime is 166800303316657. The reversal of 166800303316656 is 656613303008661.

166800303316656 is a `hidden beast` number, since 16 + 6 + 8 + 0 + 0 + 303 + 316 + 6 + 5 + 6 = 666.

166800303316656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (166800303316657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21341550 + ... + 28090253.

It is an arithmetic number, because the mean of its divisors is an integer number (3061707076152).

Almost surely, 2^{166800303316656} is an apocalyptic number.

166800303316656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166800303316656 is an abundant number, since it is smaller than the sum of its proper divisors (323072828867664).

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

166800303316656 is a wasteful number, since it uses less digits than its factorization.

166800303316656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49432000 (or 49431988 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 166800303316656 in words is "one hundred sixty-six trillion, eight hundred billion, three hundred three million, three hundred sixteen thousand, six hundred fifty-six".