166451671411 has 8 divisors (see below), whose sum is σ = 168364137600. Its totient is φ = 164540143680.

The previous prime is 166451671409. The next prime is 166451671417. The reversal of 166451671411 is 114176154661.

It is a happy number.

166451671411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 166451671411 - 2¹ = 166451671409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166451671417) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 125310 + ... + 590428.

It is an arithmetic number, because the mean of its divisors is an integer number (21045517200).

Almost surely, 2^166451671411 is an apocalyptic number.

166451671411 is a deficient number, since it is larger than the sum of its proper divisors (1912466189).

166451671411 is an equidigital number, since it uses as much as digits as its factorization.

166451671411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469229.

The product of its digits is 120960, while the sum is 43.

The spelling of 166451671411 in words is "one hundred sixty-six billion, four hundred fifty-one million, six hundred seventy-one thousand, four hundred eleven".