168836441885894 has 16 divisors (see below), whose sum is σ = 254851279594560. Its totient is φ = 83886189774120.

The previous prime is 168836441885879. The next prime is 168836441885911. The reversal of 168836441885894 is 498588144638861.

It is a super-2 number, since 2×168836441885894² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41665772 + ... + 45537999.

It is an arithmetic number, because the mean of its divisors is an integer number (15928204974660).

Almost surely, 2^{168836441885894} is an apocalyptic number.

168836441885894 is a deficient number, since it is larger than the sum of its proper divisors (86014837708666).

168836441885894 is a wasteful number, since it uses less digits than its factorization.

168836441885894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87209875.

The product of its digits is 10192158720, while the sum is 83.

The spelling of 168836441885894 in words is "one hundred sixty-eight trillion, eight hundred thirty-six billion, four hundred forty-one million, eight hundred eighty-five thousand, eight hundred ninety-four".