624664004020 has 72 divisors (see below), whose sum is σ = 1527005813760. Its totient is φ = 214024426560.

The previous prime is 624664004011. The next prime is 624664004047. The reversal of 624664004020 is 20400466426.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1224921 + ... + 1658239.

It is an arithmetic number, because the mean of its divisors is an integer number (21208414080).

Almost surely, 2^624664004020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 624664004020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763502906880).

624664004020 is an abundant number, since it is smaller than the sum of its proper divisors (902341809740).

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

624664004020 is a wasteful number, since it uses less digits than its factorization.

624664004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434813 (or 434804 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 624664004020 in words is "six hundred twenty-four billion, six hundred sixty-four million, four thousand, twenty".