665970241 has 8 divisors (see below), whose sum is σ = 691675904. Its totient is φ = 640528560.

The previous prime is 665970211. The next prime is 665970259. The reversal of 665970241 is 142079566.

665970241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 665970241 - 2⁵ = 665970209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 665970194 and 665970203.

It is not an unprimeable number, because it can be changed into a prime (665970211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60846 + ... + 70951.

It is an arithmetic number, because the mean of its divisors is an integer number (86459488).

Almost surely, 2^665970241 is an apocalyptic number.

It is an amenable number.

665970241 is a deficient number, since it is larger than the sum of its proper divisors (25705663).

665970241 is a wasteful number, since it uses less digits than its factorization.

665970241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131991.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 665970241 is about 25806.3992257734. The cubic root of 665970241 is about 873.2761668225.

The spelling of 665970241 in words is "six hundred sixty-five million, nine hundred seventy thousand, two hundred forty-one".