665531414 has 8 divisors (see below), whose sum is σ = 1002582360. Its totient is φ = 331337296.

The previous prime is 665531407. The next prime is 665531429. The reversal of 665531414 is 414135566.

665531414 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713624 + ... + 714555.

It is an arithmetic number, because the mean of its divisors is an integer number (125322795).

Almost surely, 2^665531414 is an apocalyptic number.

665531414 is a deficient number, since it is larger than the sum of its proper divisors (337050946).

665531414 is a wasteful number, since it uses less digits than its factorization.

665531414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428414.

The product of its digits is 43200, while the sum is 35.

The square root of 665531414 is about 25797.8955343261. The cubic root of 665531414 is about 873.0843157263.

The spelling of 665531414 in words is "six hundred sixty-five million, five hundred thirty-one thousand, four hundred fourteen".