166345326546 has 32 divisors (see below), whose sum is σ = 396749104128. Its totient is φ = 45460834320.

The previous prime is 166345326473. The next prime is 166345326559. The reversal of 166345326546 is 645623543661.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 86099100 + ... + 86101031.

It is an arithmetic number, because the mean of its divisors is an integer number (12398409504).

Almost surely, 2^166345326546 is an apocalyptic number.

166345326546 is an abundant number, since it is smaller than the sum of its proper divisors (230403777582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166345326546 is a wasteful number, since it uses less digits than its factorization.

166345326546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172200166.

The product of its digits is 9331200, while the sum is 51.

The spelling of 166345326546 in words is "one hundred sixty-six billion, three hundred forty-five million, three hundred twenty-six thousand, five hundred forty-six".