81169096118 has 16 divisors (see below), whose sum is σ = 132902375184. Its totient is φ = 36872760960.

The previous prime is 81169096097. The next prime is 81169096139.

81169096118 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (81169096097) and next prime (81169096139).

It is a super-2 number, since 2×81169096118² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076855 + ... + 1149762.

It is an arithmetic number, because the mean of its divisors is an integer number (8306398449).

Almost surely, 2^81169096118 is an apocalyptic number.

81169096118 is a deficient number, since it is larger than the sum of its proper divisors (51733279066).

81169096118 is a wasteful number, since it uses less digits than its factorization.

81169096118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228287.

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 81169096118 in words is "eighty-one billion, one hundred sixty-nine million, ninety-six thousand, one hundred eighteen".