168901416641 has 4 divisors (see below), whose sum is σ = 170936373552. Its totient is φ = 166866459732.

The previous prime is 168901416613. The next prime is 168901416647. The reversal of 168901416641 is 146614109861.

168901416641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168901416641 - 2⁶ = 168901416577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168901416647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017478331 + ... + 1017478496.

It is an arithmetic number, because the mean of its divisors is an integer number (42734093388).

Almost surely, 2^168901416641 is an apocalyptic number.

It is an amenable number.

168901416641 is a deficient number, since it is larger than the sum of its proper divisors (2034956911).

168901416641 is an equidigital number, since it uses as much as digits as its factorization.

168901416641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034956910.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 168901416641 in words is "one hundred sixty-eight billion, nine hundred one million, four hundred sixteen thousand, six hundred forty-one".