455309665 has 4 divisors (see below), whose sum is σ = 546371604. Its totient is φ = 364247728.

The previous prime is 455309611. The next prime is 455309683. The reversal of 455309665 is 566903554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90041121 + 365268544 = 9489^2 + 19112^2 .

It is a cyclic number.

It is not a de Polignac number, because 455309665 - 2¹⁷ = 455178593 is a prime.

It is a super-3 number, since 3×455309665³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian 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, 45530962 + ... + 45530971.

It is an arithmetic number, because the mean of its divisors is an integer number (136592901).

Almost surely, 2^455309665 is an apocalyptic number.

It is an amenable number.

455309665 is a deficient number, since it is larger than the sum of its proper divisors (91061939).

455309665 is an equidigital number, since it uses as much as digits as its factorization.

455309665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91061938.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 455309665 is about 21337.9864326510. The cubic root of 455309665 is about 769.3116156066.

The spelling of 455309665 in words is "four hundred fifty-five million, three hundred nine thousand, six hundred sixty-five".