108170911771 has 4 divisors (see below), whose sum is σ = 116491751152. Its totient is φ = 99850072392.

The previous prime is 108170911759. The next prime is 108170911811. The reversal of 108170911771 is 177119071801.

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

It is a cyclic number.

It is not a de Polignac number, because 108170911771 - 2¹⁹ = 108170387483 is a prime.

It is a super-5 number, since 5×108170911771⁵ (a number of 56 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108170911721) 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 3 ways as a sum of consecutive naturals, for example, 4160419671 + ... + 4160419696.

It is an arithmetic number, because the mean of its divisors is an integer number (29122937788).

Almost surely, 2^108170911771 is an apocalyptic number.

108170911771 is a deficient number, since it is larger than the sum of its proper divisors (8320839381).

108170911771 is an equidigital number, since it uses as much as digits as its factorization.

108170911771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320839380.

The product of its (nonzero) digits is 24696, while the sum is 43.

The spelling of 108170911771 in words is "one hundred eight billion, one hundred seventy million, nine hundred eleven thousand, seven hundred seventy-one".