664104330 has 24 divisors (see below), whose sum is σ = 1726671492. Its totient is φ = 177094464.

The previous prime is 664104317. The next prime is 664104373. The reversal of 664104330 is 33401466.

It can be written as a sum of positive squares in 2 ways, for example, as 609151761 + 54952569 = 24681^2 + 7413^2 .

It is a super-2 number, since 2×664104330² = 882069122249497800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664104294 and 664104303.

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, 3689379 + ... + 3689558.

Almost surely, 2^664104330 is an apocalyptic number.

664104330 is an abundant number, since it is smaller than the sum of its proper divisors (1062567162).

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

664104330 is a wasteful number, since it uses less digits than its factorization.

664104330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7378950 (or 7378947 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 664104330 is about 25770.2217685452. The cubic root of 664104330 is about 872.4598241504.

Adding to 664104330 its reverse (33401466), we get a palindrome (697505796).

The spelling of 664104330 in words is "six hundred sixty-four million, one hundred four thousand, three hundred thirty".