665468453 has 8 divisors (see below), whose sum is σ = 747817728. Its totient is φ = 587570544.

The previous prime is 665468437. The next prime is 665468501. The reversal of 665468453 is 354864566.

It is a happy number.

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 665468453 - 2⁴ = 665468437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 665468398 and 665468407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665464453) 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, 1112525 + ... + 1113122.

It is an arithmetic number, because the mean of its divisors is an integer number (93477216).

Almost surely, 2^665468453 is an apocalyptic number.

It is an amenable number.

665468453 is a deficient number, since it is larger than the sum of its proper divisors (82349275).

665468453 is a wasteful number, since it uses less digits than its factorization.

665468453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225683.

The product of its digits is 2073600, while the sum is 47.

The square root of 665468453 is about 25796.6752315100. The cubic root of 665468453 is about 873.0567828436.

The spelling of 665468453 in words is "six hundred sixty-five million, four hundred sixty-eight thousand, four hundred fifty-three".