64623168 has 84 divisors (see below), whose sum is σ = 186708288. Its totient is φ = 21369600.

The previous prime is 64623101. The next prime is 64623179. The reversal of 64623168 is 86132646.

64623168 is a `hidden beast` number, since 646 + 2 + 3 + 1 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86605 + ... + 87347.

Almost surely, 2^64623168 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 64623168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93354144).

64623168 is an abundant number, since it is smaller than the sum of its proper divisors (122085120).

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

64623168 is a wasteful number, since it uses less digits than its factorization.

64623168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 899 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 64623168 is about 8038.8536496195. The cubic root of 64623168 is about 401.2940755729.

The spelling of 64623168 in words is "sixty-four million, six hundred twenty-three thousand, one hundred sixty-eight".