450012660220 has 12 divisors (see below), whose sum is σ = 945026586504. Its totient is φ = 180005064080.

The previous prime is 450012660217. The next prime is 450012660221. The reversal of 450012660220 is 22066210054.

It is a super-2 number, since 2×450012660220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450012660221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11250316486 + ... + 11250316525.

It is an arithmetic number, because the mean of its divisors is an integer number (78752215542).

Almost surely, 2^450012660220 is an apocalyptic number.

It is an amenable number.

450012660220 is an abundant number, since it is smaller than the sum of its proper divisors (495013926284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450012660220 is a wasteful number, since it uses less digits than its factorization.

450012660220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22500633020 (or 22500633018 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 450012660220 its reverse (22066210054), we get a palindrome (472078870274).

The spelling of 450012660220 in words is "four hundred fifty billion, twelve million, six hundred sixty thousand, two hundred twenty".