665007413 has 16 divisors (see below), whose sum is σ = 783820800. Its totient is φ = 552336000.

The previous prime is 665007407. The next prime is 665007419. The reversal of 665007413 is 314700566.

It is an interprime number because it is at equal distance from previous prime (665007407) and next prime (665007419).

It is a cyclic number.

It is not a de Polignac number, because 665007413 - 2²⁴ = 648230197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 665007413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665007419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34988 + ... + 50538.

It is an arithmetic number, because the mean of its divisors is an integer number (48988800).

Almost surely, 2^665007413 is an apocalyptic number.

It is an amenable number.

665007413 is a deficient number, since it is larger than the sum of its proper divisors (118813387).

665007413 is a wasteful number, since it uses less digits than its factorization.

665007413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15748.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 665007413 is about 25787.7376479597. The cubic root of 665007413 is about 872.8551168404.

Adding to 665007413 its reverse (314700566), we get a palindrome (979707979).

The spelling of 665007413 in words is "six hundred sixty-five million, seven thousand, four hundred thirteen".