664352344047060 has 72 divisors (see below), whose sum is σ = 2019240591732000. Its totient is φ = 176805593742528.

The previous prime is 664352344047053. The next prime is 664352344047079. The reversal of 664352344047060 is 60740443253466.

664352344047060 is a `hidden beast` number, since 6 + 6 + 4 + 3 + 523 + 4 + 40 + 4 + 70 + 6 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 664352344046988 and 664352344047006.

It is a congruent number.

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, 3698153022 + ... + 3698332661.

It is an arithmetic number, because the mean of its divisors is an integer number (28045008218500).

Almost surely, 2^{664352344047060} is an apocalyptic number.

664352344047060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

664352344047060 is an abundant number, since it is smaller than the sum of its proper divisors (1354888247684940).

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

664352344047060 is a wasteful number, since it uses less digits than its factorization.

664352344047060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7396486197 (or 7396486192 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 54.

The spelling of 664352344047060 in words is "six hundred sixty-four trillion, three hundred fifty-two billion, three hundred forty-four million, forty-seven thousand, sixty".