166880880813 has 8 divisors (see below), whose sum is σ = 222833623968. Its totient is φ = 111091029104.

The previous prime is 166880880779. The next prime is 166880880839. The reversal of 166880880813 is 318088088661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166880880813 - 2¹⁷ = 166880749741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166880880713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40720470 + ... + 40724567.

It is an arithmetic number, because the mean of its divisors is an integer number (27854202996).

Almost surely, 2^166880880813 is an apocalyptic number.

It is an amenable number.

166880880813 is a deficient number, since it is larger than the sum of its proper divisors (55952743155).

166880880813 is an equidigital number, since it uses as much as digits as its factorization.

166880880813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81445723.

The product of its (nonzero) digits is 3538944, while the sum is 57.

The spelling of 166880880813 in words is "one hundred sixty-six billion, eight hundred eighty million, eight hundred eighty thousand, eight hundred thirteen".