664524410134403 has 64 divisors (see below), whose sum is σ = 833562607933440. Its totient is φ = 518882937895296.

The previous prime is 664524410134399. The next prime is 664524410134427. The reversal of 664524410134403 is 304431014425466.

It is not a de Polignac number, because 664524410134403 - 2² = 664524410134399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664524410131403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 432012701 + ... + 433548177.

It is an arithmetic number, because the mean of its divisors is an integer number (13024415748960).

Almost surely, 2^{664524410134403} is an apocalyptic number.

664524410134403 is a deficient number, since it is larger than the sum of its proper divisors (169038197799037).

664524410134403 is a wasteful number, since it uses less digits than its factorization.

664524410134403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535893 (or 1535867 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 47.

Adding to 664524410134403 its reverse (304431014425466), we get a palindrome (968955424559869).

The spelling of 664524410134403 in words is "six hundred sixty-four trillion, five hundred twenty-four billion, four hundred ten million, one hundred thirty-four thousand, four hundred three".