450665530785 has 80 divisors (see below), whose sum is σ = 855654115536. Its totient is φ = 226144161792.

The previous prime is 450665530771. The next prime is 450665530787. The reversal of 450665530785 is 587035566054.

It is a happy number.

450665530785 is a `hidden beast` number, since 4 + 5 + 0 + 6 + 6 + 553 + 0 + 7 + 85 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5141320209 + 445524210576 = 71703^2 + 667476^2 .

It is not a de Polignac number, because 450665530785 - 2¹⁹ = 450665006497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (450665530787) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 26381667 + ... + 26398743.

Almost surely, 2^450665530785 is an apocalyptic number.

450665530785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

450665530785 is a deficient number, since it is larger than the sum of its proper divisors (404988584751).

450665530785 is a wasteful number, since it uses less digits than its factorization.

450665530785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20944 (or 20935 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 54.

The spelling of 450665530785 in words is "four hundred fifty billion, six hundred sixty-five million, five hundred thirty thousand, seven hundred eighty-five".