66020624000 has 64 divisors (see below), whose sum is σ = 164143816200. Its totient is φ = 26408243200.

The previous prime is 66020623937. The next prime is 66020624009. The reversal of 66020624000 is 42602066.

It can be written as a sum of positive squares in 4 ways, for example, as 15769331776 + 50251292224 = 125576^2 + 224168^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (66020624009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047145 + ... + 2079144.

Almost surely, 2^66020624000 is an apocalyptic number.

It is an amenable number.

66020624000 is an abundant number, since it is smaller than the sum of its proper divisors (98123192200).

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

66020624000 is an equidigital number, since it uses as much as digits as its factorization.

66020624000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126318 (or 4126296 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 66020624000 in words is "sixty-six billion, twenty million, six hundred twenty-four thousand".