510664421040 has 80 divisors (see below), whose sum is σ = 1634126171136. Its totient is φ = 131784364800.

The previous prime is 510664421039. The next prime is 510664421123. The reversal of 510664421040 is 40124466015.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×510664421040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 510664420992 and 510664421010.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34311406 + ... + 34326285.

Almost surely, 2^510664421040 is an apocalyptic number.

It is an amenable number.

510664421040 is an abundant number, since it is smaller than the sum of its proper divisors (1123461750096).

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

510664421040 is a wasteful number, since it uses less digits than its factorization.

510664421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68637738 (or 68637732 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 510664421040 its reverse (40124466015), we get a palindrome (550788887055).

The spelling of 510664421040 in words is "five hundred ten billion, six hundred sixty-four million, four hundred twenty-one thousand, forty".