66452886272 has 36 divisors (see below), whose sum is σ = 134244380760. Its totient is φ = 32826114048.

The previous prime is 66452886193. The next prime is 66452886281. The reversal of 66452886272 is 27268825466.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1542497 + ... + 1584992.

Almost surely, 2^66452886272 is an apocalyptic number.

It is an amenable number.

66452886272 is an abundant number, since it is smaller than the sum of its proper divisors (67791494488).

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

66452886272 is an equidigital number, since it uses as much as digits as its factorization.

66452886272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127588 (or 3127574 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 56.

The spelling of 66452886272 in words is "sixty-six billion, four hundred fifty-two million, eight hundred eighty-six thousand, two hundred seventy-two".