664104168 has 96 divisors (see below), whose sum is σ = 2213702400. Its totient is φ = 175146624.

The previous prime is 664104149. The next prime is 664104187. The reversal of 664104168 is 861401466.

664104168 is a `hidden beast` number, since 6 + 641 + 0 + 4 + 1 + 6 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (664104149) and next prime (664104187).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44128 + ... + 57231.

It is an arithmetic number, because the mean of its divisors is an integer number (23059400).

Almost surely, 2^664104168 is an apocalyptic number.

It is an amenable number.

664104168 is an abundant number, since it is smaller than the sum of its proper divisors (1549598232).

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

664104168 is a wasteful number, since it uses less digits than its factorization.

664104168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101391 (or 101384 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 664104168 is about 25770.2186253823. The cubic root of 664104168 is about 872.4597532085.

The spelling of 664104168 in words is "six hundred sixty-four million, one hundred four thousand, one hundred sixty-eight".