665675241 has 96 divisors (see below), whose sum is σ = 1213470720. Its totient is φ = 319939200.

The previous prime is 665675237. The next prime is 665675261. The reversal of 665675241 is 142576566.

It is not a de Polignac number, because 665675241 - 2² = 665675237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 665675193 and 665675202.

It is not an unprimeable number, because it can be changed into a prime (665675261) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1443751 + ... + 1444211.

It is an arithmetic number, because the mean of its divisors is an integer number (12640320).

Almost surely, 2^665675241 is an apocalyptic number.

It is an amenable number.

665675241 is a deficient number, since it is larger than the sum of its proper divisors (547795479).

665675241 is a wasteful number, since it uses less digits than its factorization.

665675241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 548 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 665675241 is about 25800.6829560770. The cubic root of 665675241 is about 873.1472048455.

The spelling of 665675241 in words is "six hundred sixty-five million, six hundred seventy-five thousand, two hundred forty-one".