66025756055272 has 16 divisors (see below), whose sum is σ = 133321238188740. Its totient is φ = 30473425871616.

The previous prime is 66025756055213. The next prime is 66025756055291. The reversal of 66025756055272 is 27255065752066.

66025756055272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51802192495876 + 14223563559396 = 7197374^2 + 3771414^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317431519393 + ... + 317431519600.

Almost surely, 2^{66025756055272} is an apocalyptic number.

It is an amenable number.

66025756055272 is an abundant number, since it is smaller than the sum of its proper divisors (67295482133468).

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

66025756055272 is a wasteful number, since it uses less digits than its factorization.

66025756055272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634863039012 (or 634863039008 counting only the distinct ones).

The product of its (nonzero) digits is 52920000, while the sum is 58.

The spelling of 66025756055272 in words is "sixty-six trillion, twenty-five billion, seven hundred fifty-six million, fifty-five thousand, two hundred seventy-two".