168346093666 has 4 divisors (see below), whose sum is σ = 252519140502. Its totient is φ = 84173046832.

The previous prime is 168346093541. The next prime is 168346093667. The reversal of 168346093666 is 666390643861.

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

It can be written as a sum of positive squares in only one way, i.e., 87417792225 + 80928301441 = 295665^2 + 284479^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 168346093666.

It is not an unprimeable number, because it can be changed into a prime (168346093667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42086523415 + ... + 42086523418.

Almost surely, 2^168346093666 is an apocalyptic number.

168346093666 is a deficient number, since it is larger than the sum of its proper divisors (84173046836).

168346093666 is an equidigital number, since it uses as much as digits as its factorization.

168346093666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84173046835.

The product of its (nonzero) digits is 20155392, while the sum is 58.

The spelling of 168346093666 in words is "one hundred sixty-eight billion, three hundred forty-six million, ninety-three thousand, six hundred sixty-six".