100520165171 has 6 divisors (see below), whose sum is σ = 106089149772. Its totient is φ = 95229629820.

The previous prime is 100520165129. The next prime is 100520165173. The reversal of 100520165171 is 171561025001.

It is a de Polignac number, because none of the positive numbers 2^k-100520165171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100520165173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139224245 + ... + 139224966.

It is an arithmetic number, because the mean of its divisors is an integer number (17681524962).

Almost surely, 2^100520165171 is an apocalyptic number.

100520165171 is a deficient number, since it is larger than the sum of its proper divisors (5568984601).

100520165171 is an equidigital number, since it uses as much as digits as its factorization.

100520165171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278449249 (or 278449230 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 29.

The spelling of 100520165171 in words is "one hundred billion, five hundred twenty million, one hundred sixty-five thousand, one hundred seventy-one".