166465334454403 has 6 divisors (see below), whose sum is σ = 175687790657244. Its totient is φ = 157704001061724.

The previous prime is 166465334454401. The next prime is 166465334454413. The reversal of 166465334454403 is 304454433564661.

It is not a de Polignac number, because 166465334454403 - 2¹ = 166465334454401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166465334454401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230561404701 + ... + 230561405422.

It is an arithmetic number, because the mean of its divisors is an integer number (29281298442874).

Almost surely, 2^{166465334454403} is an apocalyptic number.

166465334454403 is a deficient number, since it is larger than the sum of its proper divisors (9222456202841).

166465334454403 is an equidigital number, since it uses as much as digits as its factorization.

166465334454403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461122810161 (or 461122810142 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 58.

The spelling of 166465334454403 in words is "one hundred sixty-six trillion, four hundred sixty-five billion, three hundred thirty-four million, four hundred fifty-four thousand, four hundred three".