168512916 has 96 divisors (see below), whose sum is σ = 464905728. Its totient is φ = 46834560.

The previous prime is 168512887. The next prime is 168512921. The reversal of 168512916 is 619215861.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485455 + ... + 485801.

It is an arithmetic number, because the mean of its divisors is an integer number (4842768).

Almost surely, 2^168512916 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 168512916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232452864).

168512916 is an abundant number, since it is smaller than the sum of its proper divisors (296392812).

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

168512916 is a wasteful number, since it uses less digits than its factorization.

168512916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 168512916 is about 12981.2524819449. The cubic root of 168512916 is about 552.3458109351.

The spelling of 168512916 in words is "one hundred sixty-eight million, five hundred twelve thousand, nine hundred sixteen".