168644712 has 64 divisors (see below), whose sum is σ = 440616960. Its totient is φ = 53726400.

The previous prime is 168644711. The next prime is 168644719. The reversal of 168644712 is 217446861.

It is not an unprimeable number, because it can be changed into a prime (168644711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60387 + ... + 63117.

It is an arithmetic number, because the mean of its divisors is an integer number (6884640).

Almost surely, 2^168644712 is an apocalyptic number.

168644712 is a gapful number since it is divisible by the number (12) 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 168644712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220308480).

168644712 is an abundant number, since it is smaller than the sum of its proper divisors (271972248).

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

168644712 is a wasteful number, since it uses less digits than its factorization.

168644712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854 (or 2850 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 168644712 is about 12986.3278874361. The cubic root of 168644712 is about 552.4897722013.

The spelling of 168644712 in words is "one hundred sixty-eight million, six hundred forty-four thousand, seven hundred twelve".