100561216171 has 8 divisors (see below), whose sum is σ = 109255073760. Its totient is φ = 92004269952.

The previous prime is 100561216127. The next prime is 100561216177. The reversal of 100561216171 is 171612165001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100561216171 is a prime.

It is a super-2 number, since 2×100561216171² (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 (100561216177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34226311 + ... + 34229248.

It is an arithmetic number, because the mean of its divisors is an integer number (13656884220).

Almost surely, 2^100561216171 is an apocalyptic number.

100561216171 is a deficient number, since it is larger than the sum of its proper divisors (8693857589).

100561216171 is a wasteful number, since it uses less digits than its factorization.

100561216171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68455685.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 100561216171 in words is "one hundred billion, five hundred sixty-one million, two hundred sixteen thousand, one hundred seventy-one".