108521576882161 has 9 divisors (see below), whose sum is σ = 108759330304249. Its totient is φ = 108284342137924.

The previous prime is 108521576882099. The next prime is 108521576882209. The reversal of 108521576882161 is 161288675125801.

The square root of 108521576882161 is 10417369.

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

It is not a de Polignac number, because 108521576882161 - 2²⁷ = 108521442664433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108521576882161.

It is not an unprimeable number, because it can be changed into a prime (108521576882561) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4864900170 + ... + 4864922476.

Almost surely, 2^{108521576882161} is an apocalyptic number.

108521576882161 is the 10417369-th square number.

108521576882161 is the 5208685-th centered octagonal number.

It is an amenable number.

108521576882161 is a deficient number, since it is larger than the sum of its proper divisors (237753422088).

108521576882161 is an frugal number, since it uses more digits than its factorization.

108521576882161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45548 (or 22774 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 61.

The spelling of 108521576882161 in words is "one hundred eight trillion, five hundred twenty-one billion, five hundred seventy-six million, eight hundred eighty-two thousand, one hundred sixty-one".