168067620 has 72 divisors (see below), whose sum is σ = 582638784. Its totient is φ = 38415168.

The previous prime is 168067591. The next prime is 168067621. The reversal of 168067620 is 26760861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (168067621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65434 + ... + 67953.

Almost surely, 2^168067620 is an apocalyptic number.

168067620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168067620 is an abundant number, since it is smaller than the sum of its proper divisors (414571164).

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

168067620 is a wasteful number, since it uses less digits than its factorization.

168067620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133409 (or 133404 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 168067620 is about 12964.0896325195. The cubic root of 168067620 is about 551.8588564780.

The spelling of 168067620 in words is "one hundred sixty-eight million, sixty-seven thousand, six hundred twenty".