665110116050 has 24 divisors (see below), whose sum is σ = 1237970662500. Its totient is φ = 265857842880.

The previous prime is 665110116049. The next prime is 665110116053. The reversal of 665110116050 is 50611011566.

It can be written as a sum of positive squares in 6 ways, for example, as 201513903409 + 463596212641 = 448903^2 + 680879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 665110115998 and 665110116016.

It is not an unprimeable number, because it can be changed into a prime (665110116053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4582925 + ... + 4725824.

Almost surely, 2^665110116050 is an apocalyptic number.

665110116050 is a deficient number, since it is larger than the sum of its proper divisors (572860546450).

665110116050 is a wasteful number, since it uses less digits than its factorization.

665110116050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310190 (or 9310185 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 665110116050 in words is "six hundred sixty-five billion, one hundred ten million, one hundred sixteen thousand, fifty".