660057453660 has 192 divisors, whose sum is σ = 2057396350464. Its totient is φ = 156751795200.

The previous prime is 660057453641. The next prime is 660057453707. The reversal of 660057453660 is 66354750066.

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 63 ways as a sum of consecutive naturals, for example, 23107507 + ... + 23136053.

It is an arithmetic number, because the mean of its divisors is an integer number (10715605992).

Almost surely, 2^660057453660 is an apocalyptic number.

660057453660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660057453660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028698175232).

660057453660 is an abundant number, since it is smaller than the sum of its proper divisors (1397338896804).

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

660057453660 is a wasteful number, since it uses less digits than its factorization.

660057453660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29284 (or 29282 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 660057453660 in words is "six hundred sixty billion, fifty-seven million, four hundred fifty-three thousand, six hundred sixty".