108081165049 has 63 divisors (see below), whose sum is σ = 135870395391. Its totient is φ = 85923929520.

The previous prime is 108081165043. The next prime is 108081165077. The reversal of 108081165049 is 940561180801.

The square root of 108081165049 is 328757.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15988338025 + 92092827024 = 126445^2 + 303468^2 .

It is not a de Polignac number, because 108081165049 - 2³ = 108081165041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108081164996 and 108081165014.

It is not an unprimeable number, because it can be changed into a prime (108081165041) by changing a digit.

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 62 ways as a sum of consecutive naturals, for example, 5688482362 + ... + 5688482380.

Almost surely, 2^108081165049 is an apocalyptic number.

108081165049 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

108081165049 is the 328757-th square number.

108081165049 is the 164379-th centered octagonal number.

It is an amenable number.

108081165049 is a deficient number, since it is larger than the sum of its proper divisors (27789230342).

108081165049 is an frugal number, since it uses more digits than its factorization.

108081165049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 108081165049 in words is "one hundred eight billion, eighty-one million, one hundred sixty-five thousand, forty-nine".