5270221666571 has 4 divisors (see below), whose sum is σ = 5270236421472. Its totient is φ = 5270206911672.

The previous prime is 5270221666559. The next prime is 5270221666573. The reversal of 5270221666571 is 1756661220725.

5270221666571 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5270221666571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5270221666573) by changing a digit.

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, 6828035 + ... + 7560588.

It is an arithmetic number, because the mean of its divisors is an integer number (1317559105368).

Almost surely, 2^{5270221666571} is an apocalyptic number.

5270221666571 is a deficient number, since it is larger than the sum of its proper divisors (14754901).

5270221666571 is a wasteful number, since it uses less digits than its factorization.

5270221666571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14754900.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 5270221666571 in words is "five trillion, two hundred seventy billion, two hundred twenty-one million, six hundred sixty-six thousand, five hundred seventy-one".