163131734268 has 60 divisors (see below), whose sum is σ = 432823687912. Its totient is φ = 53565636960.

The previous prime is 163131734237. The next prime is 163131734281. The reversal of 163131734268 is 862437131361.

163131734268 is a `hidden beast` number, since 1 + 6 + 313 + 1 + 73 + 4 + 268 = 666.

It is a super-2 number, since 2×163131734268² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3735703 + ... + 3779118.

Almost surely, 2^163131734268 is an apocalyptic number.

163131734268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

163131734268 is an abundant number, since it is smaller than the sum of its proper divisors (269691953644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163131734268 is a wasteful number, since it uses less digits than its factorization.

163131734268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514904 (or 7514893 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 163131734268 in words is "one hundred sixty-three billion, one hundred thirty-one million, seven hundred thirty-four thousand, two hundred sixty-eight".