88217716205 has 18 divisors (see below), whose sum is σ = 111742132878. Its totient is φ = 66850179120.

The previous prime is 88217716151. The next prime is 88217716207. The reversal of 88217716205 is 50261771288.

It can be written as a sum of positive squares in only one way, i.e., 70574172964 + 17643543241 = 265658^2 + 132829^2 .

It is a de Polignac number, because none of the positive numbers 2^k-88217716205 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88217716205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88217716207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12615260 + ... + 12622250.

It is an arithmetic number, because the mean of its divisors is an integer number (6207896271).

Almost surely, 2^88217716205 is an apocalyptic number.

It is an amenable number.

88217716205 is a deficient number, since it is larger than the sum of its proper divisors (23524416673).

88217716205 is an frugal number, since it uses more digits than its factorization.

88217716205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025 (or 7015 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 88217716205 in words is "eighty-eight billion, two hundred seventeen million, seven hundred sixteen thousand, two hundred five".