166604475334763 has 4 divisors (see below), whose sum is σ = 167394070004808. Its totient is φ = 165814880664720.

The previous prime is 166604475334751. The next prime is 166604475334783. The reversal of 166604475334763 is 367433574406661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166604475334763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166604475334763.

It is not an unprimeable number, because it can be changed into a prime (166604475334783) 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, 394797334706 + ... + 394797335127.

It is an arithmetic number, because the mean of its divisors is an integer number (41848517501202).

Almost surely, 2^{166604475334763} is an apocalyptic number.

166604475334763 is a deficient number, since it is larger than the sum of its proper divisors (789594670045).

166604475334763 is an equidigital number, since it uses as much as digits as its factorization.

166604475334763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789594670044.

The product of its (nonzero) digits is 548674560, while the sum is 65.

The spelling of 166604475334763 in words is "one hundred sixty-six trillion, six hundred four billion, four hundred seventy-five million, three hundred thirty-four thousand, seven hundred sixty-three".