665414245 has 8 divisors (see below), whose sum is σ = 798672384. Its totient is φ = 532214544.

The previous prime is 665414227. The next prime is 665414249. The reversal of 665414245 is 542414566.

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 665414245 - 2⁷ = 665414117 is a prime.

It is a super-3 number, since 3×665414245³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665414249) 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, 16452 + ... + 40018.

It is an arithmetic number, because the mean of its divisors is an integer number (99834048).

Almost surely, 2^665414245 is an apocalyptic number.

It is an amenable number.

665414245 is a deficient number, since it is larger than the sum of its proper divisors (133258139).

665414245 is a wasteful number, since it uses less digits than its factorization.

665414245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29219.

The product of its digits is 115200, while the sum is 37.

The square root of 665414245 is about 25795.6245320791. The cubic root of 665414245 is about 873.0330762617.

The spelling of 665414245 in words is "six hundred sixty-five million, four hundred fourteen thousand, two hundred forty-five".