168591680748 has 96 divisors (see below), whose sum is σ = 457286860800. Its totient is φ = 53613217152.

The previous prime is 168591680731. The next prime is 168591680759. The reversal of 168591680748 is 847086195861.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 862768 + ... + 1039976.

It is an arithmetic number, because the mean of its divisors is an integer number (4763404800).

Almost surely, 2^168591680748 is an apocalyptic number.

168591680748 is a gapful number since it is divisible by the number (18) 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 168591680748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228643430400).

168591680748 is an abundant number, since it is smaller than the sum of its proper divisors (288695180052).

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

168591680748 is a wasteful number, since it uses less digits than its factorization.

168591680748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177628 (or 177620 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 168591680748 in words is "one hundred sixty-eight billion, five hundred ninety-one million, six hundred eighty thousand, seven hundred forty-eight".