420255533320 has 64 divisors (see below), whose sum is σ = 1137533788800. Its totient is φ = 136504051200.

The previous prime is 420255533297. The next prime is 420255533323. The reversal of 420255533320 is 23335552024.

It is a happy number.

It is a super-2 number, since 2×420255533320² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420255533323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39492381 + ... + 39503020.

It is an arithmetic number, because the mean of its divisors is an integer number (17773965450).

Almost surely, 2^420255533320 is an apocalyptic number.

420255533320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420255533320 is an abundant number, since it is smaller than the sum of its proper divisors (717278255480).

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

420255533320 is a wasteful number, since it uses less digits than its factorization.

420255533320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78995438 (or 78995434 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

The spelling of 420255533320 in words is "four hundred twenty billion, two hundred fifty-five million, five hundred thirty-three thousand, three hundred twenty".