168512415312 has 40 divisors (see below), whose sum is σ = 440568614304. Its totient is φ = 55494047104.

The previous prime is 168512415307. The next prime is 168512415317. The reversal of 168512415312 is 213514215861.

168512415312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168512415307) and next prime (168512415317).

It is a super-2 number, since 2×168512415312² (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 (168512415317) 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 7 ways as a sum of consecutive naturals, for example, 21144663 + ... + 21152630.

Almost surely, 2^168512415312 is an apocalyptic number.

168512415312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168512415312 is an abundant number, since it is smaller than the sum of its proper divisors (272056198992).

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

168512415312 is a wasteful number, since it uses less digits than its factorization.

168512415312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42297387 (or 42297381 counting only the distinct ones).

The product of its digits is 57600, while the sum is 39.

The spelling of 168512415312 in words is "one hundred sixty-eight billion, five hundred twelve million, four hundred fifteen thousand, three hundred twelve".