166433816873 has 8 divisors (see below), whose sum is σ = 170590365120. Its totient is φ = 162326458800.

The previous prime is 166433816821. The next prime is 166433816921. The reversal of 166433816873 is 378618334661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166433816873 - 2²⁶ = 166366708009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166433836873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12290693 + ... + 12304226.

It is an arithmetic number, because the mean of its divisors is an integer number (21323795640).

Almost surely, 2^166433816873 is an apocalyptic number.

It is an amenable number.

166433816873 is a deficient number, since it is larger than the sum of its proper divisors (4156548247).

166433816873 is a wasteful number, since it uses less digits than its factorization.

166433816873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24595087.

The product of its digits is 10450944, while the sum is 56.

The spelling of 166433816873 in words is "one hundred sixty-six billion, four hundred thirty-three million, eight hundred sixteen thousand, eight hundred seventy-three".