168430886401 has 4 divisors (see below), whose sum is σ = 168433196292. Its totient is φ = 168428576512.

The previous prime is 168430886387. The next prime is 168430886411. The reversal of 168430886401 is 104688034861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104688034861 = 67 ⋅1562507983.

It can be written as a sum of positive squares in 2 ways, for example, as 85039308225 + 83391578176 = 291615^2 + 288776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168430886401 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 (168430886411) 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, 1041880 + ... + 1192633.

It is an arithmetic number, because the mean of its divisors is an integer number (42108299073).

Almost surely, 2^168430886401 is an apocalyptic number.

It is an amenable number.

168430886401 is a deficient number, since it is larger than the sum of its proper divisors (2309891).

168430886401 is an equidigital number, since it uses as much as digits as its factorization.

168430886401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309890.

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 168430886401 in words is "one hundred sixty-eight billion, four hundred thirty million, eight hundred eighty-six thousand, four hundred one".