665050036036 has 27 divisors (see below), whose sum is σ = 1180666099263. Its totient is φ = 327784481640.

The previous prime is 665050036003. The next prime is 665050036051. The reversal of 665050036036 is 630630050566.

The square root of 665050036036 is 815506.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 665050036036.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 115798981 + ... + 115804723.

Almost surely, 2^665050036036 is an apocalyptic number.

665050036036 is the 815506-th square number.

It is an amenable number.

665050036036 is a deficient number, since it is larger than the sum of its proper divisors (515616063227).

665050036036 is an frugal number, since it uses more digits than its factorization.

665050036036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632 (or 5816 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 665050036036 in words is "six hundred sixty-five billion, fifty million, thirty-six thousand, thirty-six".