7111216642 has 16 divisors (see below), whose sum is σ = 10880053632. Its totient is φ = 3484944720.

The previous prime is 7111216639. The next prime is 7111216649. The reversal of 7111216642 is 2466121117.

It is not an unprimeable number, because it can be changed into a prime (7111216649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68458 + ... + 137509.

It is an arithmetic number, because the mean of its divisors is an integer number (680003352).

Almost surely, 2^7111216642 is an apocalyptic number.

7111216642 is a deficient number, since it is larger than the sum of its proper divisors (3768836990).

7111216642 is a wasteful number, since it uses less digits than its factorization.

7111216642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206313.

The product of its digits is 4032, while the sum is 31.

The square root of 7111216642 is about 84328.0299900336. The cubic root of 7111216642 is about 1923.0089396469.

Adding to 7111216642 its reverse (2466121117), we get a palindrome (9577337759).

The spelling of 7111216642 in words is "seven billion, one hundred eleven million, two hundred sixteen thousand, six hundred forty-two".