666610424000 has 224 divisors, whose sum is σ = 1694858907456. Its totient is φ = 259579084800.

The previous prime is 666610423951. The next prime is 666610424033. The reversal of 666610424000 is 424016666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109044944 + ... + 109051056.

Almost surely, 2^666610424000 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 666610424000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847429453728).

666610424000 is an abundant number, since it is smaller than the sum of its proper divisors (1028248483456).

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

666610424000 is a wasteful number, since it uses less digits than its factorization.

666610424000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500 (or 6480 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 666610424000 in words is "six hundred sixty-six billion, six hundred ten million, four hundred twenty-four thousand".