168623680 has 112 divisors (see below), whose sum is σ = 430133760. Its totient is φ = 62742528.

The previous prime is 168623677. The next prime is 168623717. The reversal of 168623680 is 86326861.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756049 + ... + 756271.

It is an arithmetic number, because the mean of its divisors is an integer number (3840480).

Almost surely, 2^168623680 is an apocalyptic number.

168623680 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 168623680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215066880).

168623680 is an abundant number, since it is smaller than the sum of its proper divisors (261510080).

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

168623680 is a wasteful number, since it uses less digits than its factorization.

168623680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 168623680 is about 12985.5180874696. The cubic root of 168623680 is about 552.4668038995.

The spelling of 168623680 in words is "one hundred sixty-eight million, six hundred twenty-three thousand, six hundred eighty".