666036357315616 has 24 divisors (see below), whose sum is σ = 1498581803960640. Its totient is φ = 285444153135168.

The previous prime is 666036357315577. The next prime is 666036357315617. The reversal of 666036357315616 is 616513753630666.

It is not an unprimeable number, because it can be changed into a prime (666036357315617) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1486688297356 + ... + 1486688297803.

It is an arithmetic number, because the mean of its divisors is an integer number (62440908498360).

Almost surely, 2^{666036357315616} is an apocalyptic number.

It is an amenable number.

666036357315616 is an abundant number, since it is smaller than the sum of its proper divisors (832545446645024).

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

666036357315616 is a wasteful number, since it uses less digits than its factorization.

666036357315616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973376595176 (or 2973376595168 counting only the distinct ones).

The product of its (nonzero) digits is 220449600, while the sum is 64.

The spelling of 666036357315616 in words is "six hundred sixty-six trillion, thirty-six billion, three hundred fifty-seven million, three hundred fifteen thousand, six hundred sixteen".