87101545565 has 8 divisors (see below), whose sum is σ = 104568928728. Its totient is φ = 69649853760.

The previous prime is 87101545403. The next prime is 87101545567. The reversal of 87101545565 is 56554510178.

It can be written as a sum of positive squares in 4 ways, for example, as 210424036 + 86891121529 = 14506^2 + 294773^2 .

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

It is not a de Polignac number, because 87101545565 - 2²⁸ = 86833110109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87101545567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3910622 + ... + 3932831.

It is an arithmetic number, because the mean of its divisors is an integer number (13071116091).

Almost surely, 2^87101545565 is an apocalyptic number.

It is an amenable number.

87101545565 is a deficient number, since it is larger than the sum of its proper divisors (17467383163).

87101545565 is a wasteful number, since it uses less digits than its factorization.

87101545565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845679.

The product of its (nonzero) digits is 840000, while the sum is 47.

The spelling of 87101545565 in words is "eighty-seven billion, one hundred one million, five hundred forty-five thousand, five hundred sixty-five".