1117471106581 has 16 divisors (see below), whose sum is σ = 1172099335680. Its totient is φ = 1064141890560.

The previous prime is 1117471106501. The next prime is 1117471106623. The reversal of 1117471106581 is 1856011747111.

It is not a de Polignac number, because 1117471106581 - 2²⁷ = 1117336888853 is a prime.

It is a super-2 number, since 2×1117471106581² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117471106501) 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, 660580 + ... + 1634413.

It is an arithmetic number, because the mean of its divisors is an integer number (73256208480).

Almost surely, 2^{1117471106581} is an apocalyptic number.

It is an amenable number.

1117471106581 is a deficient number, since it is larger than the sum of its proper divisors (54628229099).

1117471106581 is a wasteful number, since it uses less digits than its factorization.

1117471106581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295276.

The product of its (nonzero) digits is 47040, while the sum is 43.

The spelling of 1117471106581 in words is "one trillion, one hundred seventeen billion, four hundred seventy-one million, one hundred six thousand, five hundred eighty-one".