7011171060661 has 4 divisors (see below), whose sum is σ = 7011721444000. Its totient is φ = 7010620677324.

The previous prime is 7011171060653. The next prime is 7011171060689. The reversal of 7011171060661 is 1660601711107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7011171060661 - 2³ = 7011171060653 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 7011171060661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7011171060961) 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, 275172561 + ... + 275198038.

It is an arithmetic number, because the mean of its divisors is an integer number (1752930361000).

Almost surely, 2^{7011171060661} is an apocalyptic number.

It is an amenable number.

7011171060661 is a deficient number, since it is larger than the sum of its proper divisors (550383339).

7011171060661 is a wasteful number, since it uses less digits than its factorization.

7011171060661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550383338.

The product of its (nonzero) digits is 10584, while the sum is 37.

Adding to 7011171060661 its reverse (1660601711107), we get a palindrome (8671772771768).

The spelling of 7011171060661 in words is "seven trillion, eleven billion, one hundred seventy-one million, sixty thousand, six hundred sixty-one".