66006620000 has 60 divisors (see below), whose sum is σ = 162386235396. Its totient is φ = 26402640000.

The previous prime is 66006619999. The next prime is 66006620021. The reversal of 66006620000 is 2660066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1630166 + ... + 1670165.

Almost surely, 2^66006620000 is an apocalyptic number.

It is an amenable number.

66006620000 is an abundant number, since it is smaller than the sum of its proper divisors (96379615396).

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

66006620000 is an equidigital number, since it uses as much as digits as its factorization.

66006620000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300361 (or 3300338 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 66006620000 in words is "sixty-six billion, six million, six hundred twenty thousand".