166842600835 has 4 divisors (see below), whose sum is σ = 200211121008. Its totient is φ = 133474080664.

The previous prime is 166842600833. The next prime is 166842600893. The reversal of 166842600835 is 538006248661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166842600835 - 2¹ = 166842600833 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166842600833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16684260079 + ... + 16684260088.

It is an arithmetic number, because the mean of its divisors is an integer number (50052780252).

Almost surely, 2^166842600835 is an apocalyptic number.

166842600835 is a deficient number, since it is larger than the sum of its proper divisors (33368520173).

166842600835 is an equidigital number, since it uses as much as digits as its factorization.

166842600835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33368520172.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 166842600835 in words is "one hundred sixty-six billion, eight hundred forty-two million, six hundred thousand, eight hundred thirty-five".