66055015272 has 16 divisors (see below), whose sum is σ = 165137538240. Its totient is φ = 22018338416.

The previous prime is 66055015267. The next prime is 66055015289. The reversal of 66055015272 is 27251055066.

It is a self number, because there is not a number n which added to its sum of digits gives 66055015272.

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 3 ways as a sum of consecutive naturals, for example, 1376146128 + ... + 1376146175.

It is an arithmetic number, because the mean of its divisors is an integer number (10321096140).

Almost surely, 2^66055015272 is an apocalyptic number.

It is an amenable number.

66055015272 is an abundant number, since it is smaller than the sum of its proper divisors (99082522968).

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

66055015272 is a wasteful number, since it uses less digits than its factorization.

66055015272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752292312 (or 2752292308 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 66055015272 in words is "sixty-six billion, fifty-five million, fifteen thousand, two hundred seventy-two".