168194264031 has 24 divisors (see below), whose sum is σ = 244275932160. Its totient is φ = 111516555600.

The previous prime is 168194264027. The next prime is 168194264041. The reversal of 168194264031 is 130462491861.

It is not a de Polignac number, because 168194264031 - 2² = 168194264027 is a prime.

It is a super-2 number, since 2×168194264031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168194264041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9925636 + ... + 9942566.

It is an arithmetic number, because the mean of its divisors is an integer number (10178163840).

Almost surely, 2^168194264031 is an apocalyptic number.

168194264031 is a deficient number, since it is larger than the sum of its proper divisors (76081668129).

168194264031 is a wasteful number, since it uses less digits than its factorization.

168194264031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22907 (or 22904 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 168194264031 in words is "one hundred sixty-eight billion, one hundred ninety-four million, two hundred sixty-four thousand, thirty-one".