166683333365 has 8 divisors (see below), whose sum is σ = 200379105720. Its totient is φ = 133107262912.

The previous prime is 166683333353. The next prime is 166683333391. The reversal of 166683333365 is 563333386661.

It can be written as a sum of positive squares in 4 ways, for example, as 32028829156 + 134654504209 = 178966^2 + 366953^2 .

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 166683333365 - 2⁶ = 166683333301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29922410 + ... + 29927979.

It is an arithmetic number, because the mean of its divisors is an integer number (25047388215).

Almost surely, 2^166683333365 is an apocalyptic number.

It is an amenable number.

166683333365 is a deficient number, since it is larger than the sum of its proper divisors (33695772355).

166683333365 is an equidigital number, since it uses as much as digits as its factorization.

166683333365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59850951.

The product of its digits is 12597120, while the sum is 53.

The spelling of 166683333365 in words is "one hundred sixty-six billion, six hundred eighty-three million, three hundred thirty-three thousand, three hundred sixty-five".