664169040304 has 40 divisors (see below), whose sum is σ = 1604356386048. Its totient is φ = 258767158080.

The previous prime is 664169040299. The next prime is 664169040347. The reversal of 664169040304 is 403040961466.

It is a super-2 number, since 2×664169040304² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269547892 + ... + 269550355.

Almost surely, 2^664169040304 is an apocalyptic number.

It is an amenable number.

664169040304 is an abundant number, since it is smaller than the sum of its proper divisors (940187345744).

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

664169040304 is a wasteful number, since it uses less digits than its factorization.

664169040304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539098273 (or 539098267 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 664169040304 in words is "six hundred sixty-four billion, one hundred sixty-nine million, forty thousand, three hundred four".