166601880573373 has 16 divisors (see below), whose sum is σ = 193014706325760. Its totient is φ = 140842281430656.

The previous prime is 166601880573329. The next prime is 166601880573379. The reversal of 166601880573373 is 373375088106661.

166601880573373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166601880573373 is a prime.

It is a super-2 number, since 2×166601880573373² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166601880573379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19417968 + ... + 26650726.

It is an arithmetic number, because the mean of its divisors is an integer number (12063419145360).

Almost surely, 2^{166601880573373} is an apocalyptic number.

It is an amenable number.

166601880573373 is a deficient number, since it is larger than the sum of its proper divisors (26412825752387).

166601880573373 is an equidigital number, since it uses as much as digits as its factorization.

166601880573373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277916.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 166601880573373 in words is "one hundred sixty-six trillion, six hundred one billion, eight hundred eighty million, five hundred seventy-three thousand, three hundred seventy-three".