7965543322211 has 4 divisors (see below), whose sum is σ = 7985407520424. Its totient is φ = 7945679124000.

The previous prime is 7965543322189. The next prime is 7965543322229. The reversal of 7965543322211 is 1122233455697.

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 7965543322211 - 2²⁶ = 7965476213347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7965543322211.

It is not an unprimeable number, because it can be changed into a prime (7965543322511) 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, 9932098505 + ... + 9932099306.

It is an arithmetic number, because the mean of its divisors is an integer number (1996351880106).

Almost surely, 2^{7965543322211} is an apocalyptic number.

7965543322211 is a deficient number, since it is larger than the sum of its proper divisors (19864198213).

7965543322211 is a wasteful number, since it uses less digits than its factorization.

7965543322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19864198212.

The product of its digits is 2721600, while the sum is 50.

The spelling of 7965543322211 in words is "seven trillion, nine hundred sixty-five billion, five hundred forty-three million, three hundred twenty-two thousand, two hundred eleven".