9111642481081 has 24 divisors (see below), whose sum is σ = 10616330540544. Its totient is φ = 7797402144000.

The previous prime is 9111642481079. The next prime is 9111642481111. The reversal of 9111642481081 is 1801842461119.

It is not a de Polignac number, because 9111642481081 - 2¹ = 9111642481079 is a prime.

It is a super-2 number, since 2×9111642481081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 9111642481081 = 865³ + 20886³ = 15273³ + 17704³.

It is not an unprimeable number, because it can be changed into a prime (9111642482081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418895956 + ... + 418917706.

It is an arithmetic number, because the mean of its divisors is an integer number (442347105856).

Almost surely, 2^{9111642481081} is an apocalyptic number.

9111642481081 is the 1742761-st hex number.

It is an amenable number.

9111642481081 is a deficient number, since it is larger than the sum of its proper divisors (1504688059463).

9111642481081 is a wasteful number, since it uses less digits than its factorization.

9111642481081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35141 (or 35134 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 46.

The spelling of 9111642481081 in words is "nine trillion, one hundred eleven billion, six hundred forty-two million, four hundred eighty-one thousand, eighty-one".