83725105161 has 16 divisors (see below), whose sum is σ = 113537433600. Its totient is φ = 54864954768.

The previous prime is 83725105159. The next prime is 83725105169. The reversal of 83725105161 is 16150152738.

It is not a de Polignac number, because 83725105161 - 2¹ = 83725105159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83725105169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2276920 + ... + 2313398.

It is an arithmetic number, because the mean of its divisors is an integer number (7096089600).

Almost surely, 2^83725105161 is an apocalyptic number.

It is an amenable number.

83725105161 is a deficient number, since it is larger than the sum of its proper divisors (29812328439).

83725105161 is a wasteful number, since it uses less digits than its factorization.

83725105161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49508.

The product of its (nonzero) digits is 50400, while the sum is 39.

Adding to 83725105161 its reverse (16150152738), we get a palindrome (99875257899).

The spelling of 83725105161 in words is "eighty-three billion, seven hundred twenty-five million, one hundred five thousand, one hundred sixty-one".