166441343356263 has 32 divisors (see below), whose sum is σ = 223732311264000. Its totient is φ = 110056534099200.

The previous prime is 166441343356241. The next prime is 166441343356307. The reversal of 166441343356263 is 362653343144661.

It is not a de Polignac number, because 166441343356263 - 2²⁵ = 166441309801831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166441343356363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7447362013 + ... + 7447384361.

It is an arithmetic number, because the mean of its divisors is an integer number (6991634727000).

Almost surely, 2^{166441343356263} is an apocalyptic number.

166441343356263 is a deficient number, since it is larger than the sum of its proper divisors (57290967907737).

166441343356263 is a wasteful number, since it uses less digits than its factorization.

166441343356263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31503.

The product of its digits is 67184640, while the sum is 57.

The spelling of 166441343356263 in words is "one hundred sixty-six trillion, four hundred forty-one billion, three hundred forty-three million, three hundred fifty-six thousand, two hundred sixty-three".