665364119 has 8 divisors (see below), whose sum is σ = 765520800. Its totient is φ = 566483616.

The previous prime is 665364107. The next prime is 665364143. The reversal of 665364119 is 911463566.

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 665364119 - 2²⁰ = 664315543 is a prime.

It is a super-2 number, since 2×665364119² = 885418821705292322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665364169) 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, 317924 + ... + 320009.

It is an arithmetic number, because the mean of its divisors is an integer number (95690100).

Almost surely, 2^665364119 is an apocalyptic number.

665364119 is a deficient number, since it is larger than the sum of its proper divisors (100156681).

665364119 is a wasteful number, since it uses less digits than its factorization.

665364119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638089.

The product of its digits is 116640, while the sum is 41.

The square root of 665364119 is about 25794.6529148969. The cubic root of 665364119 is about 873.0111536998.

The spelling of 665364119 in words is "six hundred sixty-five million, three hundred sixty-four thousand, one hundred nineteen".