422520660464 has 20 divisors (see below), whose sum is σ = 935581462704. Its totient is φ = 181080283008.

The previous prime is 422520660451. The next prime is 422520660467. The reversal of 422520660464 is 464066025224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422520660467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886252837 + ... + 1886253060.

Almost surely, 2^422520660464 is an apocalyptic number.

It is an amenable number.

422520660464 is an abundant number, since it is smaller than the sum of its proper divisors (513060802240).

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

422520660464 is a wasteful number, since it uses less digits than its factorization.

422520660464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772505912 (or 3772505906 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 422520660464 its reverse (464066025224), we get a palindrome (886586685688).

The spelling of 422520660464 in words is "four hundred twenty-two billion, five hundred twenty million, six hundred sixty thousand, four hundred sixty-four".