168516996 has 48 divisors (see below), whose sum is σ = 407172864. Its totient is φ = 54210816.

The previous prime is 168516991. The next prime is 168517003. The reversal of 168516996 is 699615861.

It is not an unprimeable number, because it can be changed into a prime (168516991) 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, 39126 + ... + 43218.

It is an arithmetic number, because the mean of its divisors is an integer number (8482768).

Almost surely, 2^168516996 is an apocalyptic number.

It is an amenable number.

168516996 is an abundant number, since it is smaller than the sum of its proper divisors (238655868).

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

168516996 is a wasteful number, since it uses less digits than its factorization.

168516996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220 (or 4218 counting only the distinct ones).

The product of its digits is 699840, while the sum is 51.

The square root of 168516996 is about 12981.4096306988. The cubic root of 168516996 is about 552.3502686602.

It can be divided in two parts, 1685 and 16996, that added together give a palindrome (18681).

The spelling of 168516996 in words is "one hundred sixty-eight million, five hundred sixteen thousand, nine hundred ninety-six".