664662344243140 has 48 divisors (see below), whose sum is σ = 1470618042985728. Its totient is φ = 251836606226304.

The previous prime is 664662344243089. The next prime is 664662344243251. The reversal of 664662344243140 is 41342443266466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7014118347 + ... + 7014213106.

It is an arithmetic number, because the mean of its divisors is an integer number (30637875895536).

Almost surely, 2^{664662344243140} is an apocalyptic number.

It is an amenable number.

664662344243140 is an abundant number, since it is smaller than the sum of its proper divisors (805955698742588).

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

664662344243140 is a wasteful number, since it uses less digits than its factorization.

664662344243140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14028331588 (or 14028331586 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 55.

The spelling of 664662344243140 in words is "six hundred sixty-four trillion, six hundred sixty-two billion, three hundred forty-four million, two hundred forty-three thousand, one hundred forty".