660444130201056 has 48 divisors (see below), whose sum is σ = 1749868326307584. Its totient is φ = 218090585047424.

The previous prime is 660444130200941. The next prime is 660444130201061. The reversal of 660444130201056 is 650102031444066.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 660444130200999 and 660444130201017.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 32147776440 + ... + 32147796983.

It is an arithmetic number, because the mean of its divisors is an integer number (36455590131408).

Almost surely, 2^{660444130201056} is an apocalyptic number.

It is an amenable number.

660444130201056 is an abundant number, since it is smaller than the sum of its proper divisors (1089424196106528).

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

660444130201056 is a wasteful number, since it uses less digits than its factorization.

660444130201056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64295573543 (or 64295573535 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 660444130201056 in words is "six hundred sixty trillion, four hundred forty-four billion, one hundred thirty million, two hundred one thousand, fifty-six".