168501970 has 32 divisors (see below), whose sum is σ = 373298688. Its totient is φ = 53327808.

The previous prime is 168501967. The next prime is 168501989. The reversal of 168501970 is 79105861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91674 + ... + 93493.

It is an arithmetic number, because the mean of its divisors is an integer number (11665584).

Almost surely, 2^168501970 is an apocalyptic number.

168501970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168501970 is an abundant number, since it is smaller than the sum of its proper divisors (204796718).

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

168501970 is a wasteful number, since it uses less digits than its factorization.

168501970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185194.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 168501970 is about 12980.8308670901. The cubic root of 168501970 is about 552.3338512027. Note that the first 3 decimals are identical.

The spelling of 168501970 in words is "one hundred sixty-eight million, five hundred one thousand, nine hundred seventy".