666060371712 has 216 divisors, whose sum is σ = 2007248029696. Its totient is φ = 220269321216.

The previous prime is 666060371663. The next prime is 666060371747. The reversal of 666060371712 is 217173060666.

It is a tau number, because it is divible by the number of its divisors (216).

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, 7858263 + ... + 7942569.

Almost surely, 2^666060371712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666060371712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1003624014848).

666060371712 is an abundant number, since it is smaller than the sum of its proper divisors (1341187657984).

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

666060371712 is an equidigital number, since it uses as much as digits as its factorization.

666060371712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84465 (or 84439 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 666060371712 in words is "six hundred sixty-six billion, sixty million, three hundred seventy-one thousand, seven hundred twelve".