66274095953568 has 48 divisors (see below), whose sum is σ = 173981512535040. Its totient is φ = 22089840155136.

The previous prime is 66274095953519. The next prime is 66274095953581. The reversal of 66274095953568 is 86535959047266.

It is a happy number.

66274095953568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 66274095953568.

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 7 ways as a sum of consecutive naturals, for example, 22432480 + ... + 25214367.

It is an arithmetic number, because the mean of its divisors is an integer number (3624614844480).

Almost surely, 2^{66274095953568} is an apocalyptic number.

It is an amenable number.

66274095953568 is an abundant number, since it is smaller than the sum of its proper divisors (107707416581472).

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

66274095953568 is a wasteful number, since it uses less digits than its factorization.

66274095953568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47661349 (or 47661341 counting only the distinct ones).

The product of its (nonzero) digits is 2939328000, while the sum is 75.

The spelling of 66274095953568 in words is "sixty-six trillion, two hundred seventy-four billion, ninety-five million, nine hundred fifty-three thousand, five hundred sixty-eight".