665023341 has 16 divisors (see below), whose sum is σ = 893851200. Its totient is φ = 439786368.

The previous prime is 665023319. The next prime is 665023349. The reversal of 665023341 is 143320566.

It is not a de Polignac number, because 665023341 - 2⁵ = 665023309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 665023299 and 665023308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665023349) 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, 222505 + ... + 225473.

It is an arithmetic number, because the mean of its divisors is an integer number (55865700).

Almost surely, 2^665023341 is an apocalyptic number.

It is an amenable number.

665023341 is a deficient number, since it is larger than the sum of its proper divisors (228827859).

665023341 is a wasteful number, since it uses less digits than its factorization.

665023341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 665023341 is about 25788.0464750628. The cubic root of 665023341 is about 872.8620855473.

The spelling of 665023341 in words is "six hundred sixty-five million, twenty-three thousand, three hundred forty-one".