168466720 has 48 divisors (see below), whose sum is σ = 415316160. Its totient is φ = 64455424.

The previous prime is 168466709. The next prime is 168466721. The reversal of 168466720 is 27664861.

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

It is not an unprimeable number, because it can be changed into a prime (168466721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19210 + ... + 26569.

It is an arithmetic number, because the mean of its divisors is an integer number (8652420).

Almost surely, 2^168466720 is an apocalyptic number.

168466720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168466720 is an abundant number, since it is smaller than the sum of its proper divisors (246849440).

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

168466720 is a wasteful number, since it uses less digits than its factorization.

168466720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45817 (or 45809 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 168466720 is about 12979.4730247418. The cubic root of 168466720 is about 552.2953331049.

The spelling of 168466720 in words is "one hundred sixty-eight million, four hundred sixty-six thousand, seven hundred twenty".