166287345446 has 16 divisors (see below), whose sum is σ = 249896341728. Its totient is φ = 82988640000.

The previous prime is 166287345407. The next prime is 166287345451. The reversal of 166287345446 is 644543782661.

It is a junction number, because it is equal to n+sod(n) for n = 166287345391 and 166287345400.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5032796 + ... + 5065728.

It is an arithmetic number, because the mean of its divisors is an integer number (15618521358).

Almost surely, 2^166287345446 is an apocalyptic number.

166287345446 is a deficient number, since it is larger than the sum of its proper divisors (83608996282).

166287345446 is a wasteful number, since it uses less digits than its factorization.

166287345446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37567.

The product of its digits is 23224320, while the sum is 56.

The spelling of 166287345446 in words is "one hundred sixty-six billion, two hundred eighty-seven million, three hundred forty-five thousand, four hundred forty-six".