66538136300 has 36 divisors (see below), whose sum is σ = 144506662440. Its totient is φ = 26593336320.

The previous prime is 66538136251. The next prime is 66538136321. The reversal of 66538136300 is 363183566.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151670 + ... + 395069.

Almost surely, 2^66538136300 is an apocalyptic number.

It is an amenable number.

66538136300 is an abundant number, since it is smaller than the sum of its proper divisors (77968526140).

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

66538136300 is a wasteful number, since it uses less digits than its factorization.

66538136300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547970 (or 547963 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 66538136300 in words is "sixty-six billion, five hundred thirty-eight million, one hundred thirty-six thousand, three hundred".