168297516 has 36 divisors (see below), whose sum is σ = 447811000. Its totient is φ = 53146368.

The previous prime is 168297491. The next prime is 168297517. The reversal of 168297516 is 615792861.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (168297517) 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 11 ways as a sum of consecutive naturals, for example, 122341 + ... + 123708.

Almost surely, 2^168297516 is an apocalyptic number.

It is an amenable number.

168297516 is an abundant number, since it is smaller than the sum of its proper divisors (279513484).

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

168297516 is a wasteful number, since it uses less digits than its factorization.

168297516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246078 (or 246073 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 168297516 is about 12972.9532489715. The cubic root of 168297516 is about 552.1103670306.

The spelling of 168297516 in words is "one hundred sixty-eight million, two hundred ninety-seven thousand, five hundred sixteen".