168789216 has 24 divisors (see below), whose sum is σ = 443071944. Its totient is φ = 56263040.

The previous prime is 168789167. The next prime is 168789221. The reversal of 168789216 is 612987861.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×168789216³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 879015 + ... + 879206.

It is an arithmetic number, because the mean of its divisors is an integer number (18461331).

Almost surely, 2^168789216 is an apocalyptic number.

168789216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168789216 is an abundant number, since it is smaller than the sum of its proper divisors (274282728).

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

168789216 is a wasteful number, since it uses less digits than its factorization.

168789216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758234 (or 1758226 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 168789216 is about 12991.8903936263. The cubic root of 168789216 is about 552.6475282892.

The spelling of 168789216 in words is "one hundred sixty-eight million, seven hundred eighty-nine thousand, two hundred sixteen".