420066255231 has 72 divisors (see below), whose sum is σ = 732433862160. Its totient is φ = 239884872192.

The previous prime is 420066255229. The next prime is 420066255241. The reversal of 420066255231 is 132552660024.

420066255231 is a `hidden beast` number, since 4 + 2 + 0 + 0 + 6 + 625 + 5 + 23 + 1 = 666.

It is not a de Polignac number, because 420066255231 - 2¹ = 420066255229 is a prime.

It is a super-2 number, since 2×420066255231² (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 (420066255241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20195785 + ... + 20216573.

It is an arithmetic number, because the mean of its divisors is an integer number (10172692530).

Almost surely, 2^420066255231 is an apocalyptic number.

420066255231 is a deficient number, since it is larger than the sum of its proper divisors (312367606929).

420066255231 is a wasteful number, since it uses less digits than its factorization.

420066255231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22515 (or 22496 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 420066255231 in words is "four hundred twenty billion, sixty-six million, two hundred fifty-five thousand, two hundred thirty-one".