2064657222071 has 4 divisors (see below), whose sum is σ = 2064714925032. Its totient is φ = 2064599519112.

The previous prime is 2064657222049. The next prime is 2064657222101. The reversal of 2064657222071 is 1702227564602.

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

It is a cyclic number.

It is not a de Polignac number, because 2064657222071 - 2¹⁴ = 2064657205687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064657222031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28797776 + ... + 28869381.

It is an arithmetic number, because the mean of its divisors is an integer number (516178731258).

Almost surely, 2^{2064657222071} is an apocalyptic number.

2064657222071 is a deficient number, since it is larger than the sum of its proper divisors (57702961).

2064657222071 is an equidigital number, since it uses as much as digits as its factorization.

2064657222071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57702960.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 2064657222071 in words is "two trillion, sixty-four billion, six hundred fifty-seven million, two hundred twenty-two thousand, seventy-one".