168263916 has 36 divisors (see below), whose sum is σ = 406645512. Its totient is φ = 54150656.

The previous prime is 168263903. The next prime is 168263941. The reversal of 168263916 is 619362861.

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 11 ways as a sum of consecutive naturals, for example, 1756 + ... + 18428.

Almost surely, 2^168263916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168263916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203322756).

168263916 is an abundant number, since it is smaller than the sum of its proper divisors (238381596).

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

168263916 is a wasteful number, since it uses less digits than its factorization.

168263916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16738 (or 16707 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 168263916 is about 12971.6581823605. The cubic root of 168263916 is about 552.0736222954.

The spelling of 168263916 in words is "one hundred sixty-eight million, two hundred sixty-three thousand, nine hundred sixteen".