664560745410 has 32 divisors (see below), whose sum is σ = 1595011904640. Its totient is φ = 177208852608.

The previous prime is 664560745393. The next prime is 664560745447. The reversal of 664560745410 is 14547065466.

It is a self number, because there is not a number n which added to its sum of digits gives 664560745410.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297051 + ... + 1190529.

It is an arithmetic number, because the mean of its divisors is an integer number (49844122020).

Almost surely, 2^664560745410 is an apocalyptic number.

664560745410 is an abundant number, since it is smaller than the sum of its proper divisors (930451159230).

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

664560745410 is a wasteful number, since it uses less digits than its factorization.

664560745410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918282.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 664560745410 in words is "six hundred sixty-four billion, five hundred sixty million, seven hundred forty-five thousand, four hundred ten".