665066160516 has 48 divisors (see below), whose sum is σ = 1553506053120. Its totient is φ = 221448138240.

The previous prime is 665066160511. The next prime is 665066160541. The reversal of 665066160516 is 615061660566.

It is not an unprimeable number, because it can be changed into a prime (665066160511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54520930 + ... + 54533126.

It is an arithmetic number, because the mean of its divisors is an integer number (32364709440).

Almost surely, 2^665066160516 is an apocalyptic number.

It is an amenable number.

665066160516 is an abundant number, since it is smaller than the sum of its proper divisors (888439892604).

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

665066160516 is a wasteful number, since it uses less digits than its factorization.

665066160516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16764 (or 16762 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 665066160516 in words is "six hundred sixty-five billion, sixty-six million, one hundred sixty thousand, five hundred sixteen".