168746691960 has 1728 divisors, whose sum is σ = 769459370400. Its totient is φ = 32763709440.

The previous prime is 168746691959. The next prime is 168746691973. The reversal of 168746691960 is 69196647861.

168746691960 is a `hidden beast` number, since 1 + 6 + 87 + 466 + 9 + 1 + 96 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 2311598484 + ... + 2311598556.

Almost surely, 2^168746691960 is an apocalyptic number.

168746691960 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 168746691960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384729685200).

168746691960 is an abundant number, since it is smaller than the sum of its proper divisors (600712678440).

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

168746691960 is a wasteful number, since it uses less digits than its factorization.

168746691960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 168746691960 in words is "one hundred sixty-eight billion, seven hundred forty-six million, six hundred ninety-one thousand, nine hundred sixty".