166416500845 has 32 divisors (see below), whose sum is σ = 233839178496. Its totient is φ = 111309811200.

The previous prime is 166416500839. The next prime is 166416500893. The reversal of 166416500845 is 548005614661.

It is not a de Polignac number, because 166416500845 - 2⁹ = 166416500333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166416500795 and 166416500804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12651562 + ... + 12664708.

It is an arithmetic number, because the mean of its divisors is an integer number (7307474328).

Almost surely, 2^166416500845 is an apocalyptic number.

It is an amenable number.

166416500845 is a deficient number, since it is larger than the sum of its proper divisors (67422677651).

166416500845 is a wasteful number, since it uses less digits than its factorization.

166416500845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22021.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 166416500845 in words is "one hundred sixty-six billion, four hundred sixteen million, five hundred thousand, eight hundred forty-five".