87163705224 has 96 divisors (see below), whose sum is σ = 241798284000. Its totient is φ = 28356443136.

The previous prime is 87163705177. The next prime is 87163705241. The reversal of 87163705224 is 42250736178.

87163705224 is a `hidden beast` number, since 8 + 7 + 1 + 637 + 0 + 5 + 2 + 2 + 4 = 666.

It is a Cunningham number, because it is equal to 295235²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 87163705224.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 516664 + ... + 664280.

It is an arithmetic number, because the mean of its divisors is an integer number (2518732125).

Almost surely, 2^87163705224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87163705224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120899142000).

87163705224 is an abundant number, since it is smaller than the sum of its proper divisors (154634578776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87163705224 is a wasteful number, since it uses less digits than its factorization.

87163705224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147827 (or 147820 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 87163705224 in words is "eighty-seven billion, one hundred sixty-three million, seven hundred five thousand, two hundred twenty-four".