168645264 has 20 divisors (see below), whose sum is σ = 435667056. Its totient is φ = 56215072.

The previous prime is 168645263. The next prime is 168645283. The reversal of 168645264 is 462546861.

It is not an unprimeable number, because it can be changed into a prime (168645263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756674 + ... + 1756769.

Almost surely, 2^168645264 is an apocalyptic number.

It is an amenable number.

168645264 is an abundant number, since it is smaller than the sum of its proper divisors (267021792).

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

168645264 is a wasteful number, since it uses less digits than its factorization.

168645264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513454 (or 3513448 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 168645264 is about 12986.3491405398. The cubic root of 168645264 is about 552.4903749953.

The spelling of 168645264 in words is "one hundred sixty-eight million, six hundred forty-five thousand, two hundred sixty-four".