87915546161 has 2 divisors, whose sum is σ = 87915546162. Its totient is φ = 87915546160.

The previous prime is 87915546151. The next prime is 87915546163. The reversal of 87915546161 is 16164551978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46317496225 + 41598049936 = 215215^2 + 203956^2 .

It is a cyclic number.

It is not a de Polignac number, because 87915546161 - 2¹⁴ = 87915529777 is a prime.

Together with 87915546163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87915546163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43957773080 + 43957773081.

It is an arithmetic number, because the mean of its divisors is an integer number (43957773081).

Almost surely, 2^87915546161 is an apocalyptic number.

It is an amenable number.

87915546161 is a deficient number, since it is larger than the sum of its proper divisors (1).

87915546161 is an equidigital number, since it uses as much as digits as its factorization.

87915546161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 53.

The spelling of 87915546161 in words is "eighty-seven billion, nine hundred fifteen million, five hundred forty-six thousand, one hundred sixty-one".