665116035 has 32 divisors (see below), whose sum is σ = 1103127552. Its totient is φ = 341975040.

The previous prime is 665116031. The next prime is 665116043. The reversal of 665116035 is 530611566.

It is not a de Polignac number, because 665116035 - 2² = 665116031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 665115987 and 665116005.

It is not an unprimeable number, because it can be changed into a prime (665116031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40195 + ... + 54275.

It is an arithmetic number, because the mean of its divisors is an integer number (34472736).

Almost surely, 2^665116035 is an apocalyptic number.

665116035 is a deficient number, since it is larger than the sum of its proper divisors (438011517).

665116035 is a wasteful number, since it uses less digits than its factorization.

665116035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14203.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 665116035 is about 25789.8436404721. The cubic root of 665116035 is about 872.9026381687.

The spelling of 665116035 in words is "six hundred sixty-five million, one hundred sixteen thousand, thirty-five".