166046564631245 has 16 divisors (see below), whose sum is σ = 199297642959360. Its totient is φ = 132809411097600.

The previous prime is 166046564631187. The next prime is 166046564631293. The reversal of 166046564631245 is 542136465640661.

It is a happy number.

It is not a de Polignac number, because 166046564631245 - 2²² = 166046560436941 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 467716205 + ... + 468071085.

It is an arithmetic number, because the mean of its divisors is an integer number (12456102684960).

Almost surely, 2^{166046564631245} is an apocalyptic number.

It is an amenable number.

166046564631245 is a deficient number, since it is larger than the sum of its proper divisors (33251078328115).

166046564631245 is an equidigital number, since it uses as much as digits as its factorization.

166046564631245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374236.

The product of its (nonzero) digits is 74649600, while the sum is 59.

The spelling of 166046564631245 in words is "one hundred sixty-six trillion, forty-six billion, five hundred sixty-four million, six hundred thirty-one thousand, two hundred forty-five".