66540277300 has 36 divisors (see below), whose sum is σ = 165019889440. Its totient is φ = 22813809120.

The previous prime is 66540277291. The next prime is 66540277381. The reversal of 66540277300 is 377204566.

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 11 ways as a sum of consecutive naturals, for example, 47528070 + ... + 47529469.

Almost surely, 2^66540277300 is an apocalyptic number.

It is an amenable number.

66540277300 is an abundant number, since it is smaller than the sum of its proper divisors (98479612140).

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

66540277300 is a wasteful number, since it uses less digits than its factorization.

66540277300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95057560 (or 95057553 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 66540277300 in words is "sixty-six billion, five hundred forty million, two hundred seventy-seven thousand, three hundred".