166707280880 has 160 divisors (see below), whose sum is σ = 470202226560. Its totient is φ = 53659238400.

The previous prime is 166707280879. The next prime is 166707280891. The reversal of 166707280880 is 88082707661.

It is a happy number.

166707280880 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 31 ways as a sum of consecutive naturals, for example, 3795686 + ... + 3839354.

It is an arithmetic number, because the mean of its divisors is an integer number (2938763916).

Almost surely, 2^166707280880 is an apocalyptic number.

166707280880 is a gapful number since it is divisible by the number (10) 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 166707280880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235101113280).

166707280880 is an abundant number, since it is smaller than the sum of its proper divisors (303494945680).

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

166707280880 is a wasteful number, since it uses less digits than its factorization.

166707280880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44107 (or 44101 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 166707280880 in words is "one hundred sixty-six billion, seven hundred seven million, two hundred eighty thousand, eight hundred eighty".