665466453 has 12 divisors (see below), whose sum is σ = 963911520. Its totient is φ = 442406376.

The previous prime is 665466437. The next prime is 665466493. The reversal of 665466453 is 354664566.

665466453 is a `hidden beast` number, since 66 + 546 + 6 + 45 + 3 = 666.

It is not a de Polignac number, because 665466453 - 2⁴ = 665466437 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 665466399 and 665466408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665466493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99751 + ... + 106212.

It is an arithmetic number, because the mean of its divisors is an integer number (80325960).

Almost surely, 2^665466453 is an apocalyptic number.

It is an amenable number.

665466453 is a deficient number, since it is larger than the sum of its proper divisors (298445067).

665466453 is a wasteful number, since it uses less digits than its factorization.

665466453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206328 (or 206325 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 665466453 is about 25796.6364667954. The cubic root of 665466453 is about 873.0559082139.

The spelling of 665466453 in words is "six hundred sixty-five million, four hundred sixty-six thousand, four hundred fifty-three".