168998767056 has 240 divisors, whose sum is σ = 552644771328. Its totient is φ = 47205273600.

The previous prime is 168998767001. The next prime is 168998767073. The reversal of 168998767056 is 650767899861.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64477426 + ... + 64480046.

Almost surely, 2^168998767056 is an apocalyptic number.

168998767056 is a gapful number since it is divisible by the number (16) 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 168998767056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276322385664).

168998767056 is an abundant number, since it is smaller than the sum of its proper divisors (383646004272).

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

168998767056 is a wasteful number, since it uses less digits than its factorization.

168998767056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 72.

The spelling of 168998767056 in words is "one hundred sixty-eight billion, nine hundred ninety-eight million, seven hundred sixty-seven thousand, fifty-six".