87161757585 has 64 divisors (see below), whose sum is σ = 161890639872. Its totient is φ = 39219054336.

The previous prime is 87161757541. The next prime is 87161757593. The reversal of 87161757585 is 58575716178.

It is not a de Polignac number, because 87161757585 - 2¹¹ = 87161755537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10217592 + ... + 10226118.

It is an arithmetic number, because the mean of its divisors is an integer number (2529541248).

Almost surely, 2^87161757585 is an apocalyptic number.

It is an amenable number.

87161757585 is a deficient number, since it is larger than the sum of its proper divisors (74728882287).

87161757585 is a wasteful number, since it uses less digits than its factorization.

87161757585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10062.

The product of its digits is 16464000, while the sum is 60.

The spelling of 87161757585 in words is "eighty-seven billion, one hundred sixty-one million, seven hundred fifty-seven thousand, five hundred eighty-five".