108466040681 has 4 divisors (see below), whose sum is σ = 111397555332. Its totient is φ = 105534526032.

The previous prime is 108466040663. The next prime is 108466040689. The reversal of 108466040681 is 186040664801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45223850281 + 63242190400 = 212659^2 + 251480^2 .

It is a cyclic number.

It is not a de Polignac number, because 108466040681 - 2¹⁰ = 108466039657 is a prime.

It is a super-2 number, since 2×108466040681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108466040689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1465757270 + ... + 1465757343.

It is an arithmetic number, because the mean of its divisors is an integer number (27849388833).

Almost surely, 2^108466040681 is an apocalyptic number.

It is an amenable number.

108466040681 is a deficient number, since it is larger than the sum of its proper divisors (2931514651).

108466040681 is an equidigital number, since it uses as much as digits as its factorization.

108466040681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931514650.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 108466040681 in words is "one hundred eight billion, four hundred sixty-six million, forty thousand, six hundred eighty-one".