87616666887 has 16 divisors (see below), whose sum is σ = 118041181440. Its totient is φ = 57804336000.

The previous prime is 87616666873. The next prime is 87616666909. The reversal of 87616666887 is 78866661678.

It is not a de Polignac number, because 87616666887 - 2¹⁰ = 87616665863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87616666867) 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, 208114 + ... + 467487.

It is an arithmetic number, because the mean of its divisors is an integer number (7377573840).

Almost surely, 2^87616666887 is an apocalyptic number.

87616666887 is a deficient number, since it is larger than the sum of its proper divisors (30424514553).

87616666887 is a wasteful number, since it uses less digits than its factorization.

87616666887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676054.

The product of its digits is 195084288, while the sum is 69.

The spelling of 87616666887 in words is "eighty-seven billion, six hundred sixteen million, six hundred sixty-six thousand, eight hundred eighty-seven".