168651131000 has 192 divisors, whose sum is σ = 434719565280. Its totient is φ = 61195200000.

The previous prime is 168651130951. The next prime is 168651131027. The reversal of 168651131000 is 131156861.

168651131000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168651131000² (a number of 23 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 47 ways as a sum of consecutive naturals, for example, 69089780 + ... + 69092220.

Almost surely, 2^168651131000 is an apocalyptic number.

168651131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168651131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217359782640).

168651131000 is an abundant number, since it is smaller than the sum of its proper divisors (266068434280).

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

168651131000 is a wasteful number, since it uses less digits than its factorization.

168651131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055 (or 3030 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

Adding to 168651131000 its reverse (131156861), we get a palindrome (168782287861).

The spelling of 168651131000 in words is "one hundred sixty-eight billion, six hundred fifty-one million, one hundred thirty-one thousand".