420653333543 has 12 divisors (see below), whose sum is σ = 424497414000. Its totient is φ = 416832847872.

The previous prime is 420653333483. The next prime is 420653333549. The reversal of 420653333543 is 345333356024.

It is a happy number.

It is not a de Polignac number, because 420653333543 - 2²⁶ = 420586224679 is a prime.

It is a super-3 number, since 3×420653333543³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420653333543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420653333549) 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, 12730958 + ... + 12763956.

It is an arithmetic number, because the mean of its divisors is an integer number (35374784500).

Almost surely, 2^420653333543 is an apocalyptic number.

420653333543 is a deficient number, since it is larger than the sum of its proper divisors (3844080457).

420653333543 is an equidigital number, since it uses as much as digits as its factorization.

420653333543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33706 (or 33449 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 41.

Adding to 420653333543 its reverse (345333356024), we get a palindrome (765986689567).

The spelling of 420653333543 in words is "four hundred twenty billion, six hundred fifty-three million, three hundred thirty-three thousand, five hundred forty-three".