168709495680 has 896 divisors, whose sum is σ = 670414371840. Its totient is φ = 40236134400.

The previous prime is 168709495637. The next prime is 168709495727. The reversal of 168709495680 is 86594907861.

168709495680 is a `hidden beast` number, since 1 + 6 + 87 + 0 + 9 + 495 + 68 + 0 = 666.

It is a super-3 number, since 3×168709495680³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 364383129 + ... + 364383591.

Almost surely, 2^168709495680 is an apocalyptic number.

168709495680 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 168709495680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335207185920).

168709495680 is an abundant number, since it is smaller than the sum of its proper divisors (501704876160).

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

168709495680 is an equidigital number, since it uses as much as digits as its factorization.

168709495680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 168709495680 in words is "one hundred sixty-eight billion, seven hundred nine million, four hundred ninety-five thousand, six hundred eighty".