7117101721161 has 16 divisors (see below), whose sum is σ = 10545137281920. Its totient is φ = 4744157184720.

The previous prime is 7117101721139. The next prime is 7117101721183. The reversal of 7117101721161 is 1611271017117.

It is an interprime number because it is at equal distance from previous prime (7117101721139) and next prime (7117101721183).

It is not a de Polignac number, because 7117101721161 - 2⁹ = 7117101720649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7117101729161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15809925 + ... + 16253858.

It is an arithmetic number, because the mean of its divisors is an integer number (659071080120).

Almost surely, 2^{7117101721161} is an apocalyptic number.

It is an amenable number.

7117101721161 is a deficient number, since it is larger than the sum of its proper divisors (3428035560759).

7117101721161 is a wasteful number, since it uses less digits than its factorization.

7117101721161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32072013 (or 32072007 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 36.

Adding to 7117101721161 its reverse (1611271017117), we get a palindrome (8728372738278).

The spelling of 7117101721161 in words is "seven trillion, one hundred seventeen billion, one hundred one million, seven hundred twenty-one thousand, one hundred sixty-one".