665077041 has 16 divisors (see below), whose sum is σ = 1000008000. Its totient is φ = 436765824.

The previous prime is 665077027. The next prime is 665077051. The reversal of 665077041 is 140770566.

It is not a de Polignac number, because 665077041 - 2²² = 660882737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 665076987 and 665077005.

It is not an unprimeable number, because it can be changed into a prime (665077051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182016 + ... + 185633.

It is an arithmetic number, because the mean of its divisors is an integer number (62500500).

Almost surely, 2^665077041 is an apocalyptic number.

It is an amenable number.

665077041 is a deficient number, since it is larger than the sum of its proper divisors (334930959).

665077041 is a wasteful number, since it uses less digits than its factorization.

665077041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367725 (or 367719 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 665077041 is about 25789.0876341138. The cubic root of 665077041 is about 872.8855791750.

The spelling of 665077041 in words is "six hundred sixty-five million, seventy-seven thousand, forty-one".