8170541648 has 10 divisors (see below), whose sum is σ = 15830424474. Its totient is φ = 4085270816.

The previous prime is 8170541647. The next prime is 8170541699. The reversal of 8170541648 is 8461450718.

It can be written as a sum of positive squares in only one way, i.e., 7958780944 + 211760704 = 89212^2 + 14552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8170541599 and 8170541608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8170541647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255329411 + ... + 255329442.

Almost surely, 2^8170541648 is an apocalyptic number.

It is an amenable number.

8170541648 is a deficient number, since it is larger than the sum of its proper divisors (7659882826).

8170541648 is a wasteful number, since it uses less digits than its factorization.

8170541648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510658861 (or 510658855 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 8170541648 is about 90391.0484948593. The cubic root of 8170541648 is about 2014.1119955917. Note that the first 3 decimals are identical.

The spelling of 8170541648 in words is "eight billion, one hundred seventy million, five hundred forty-one thousand, six hundred forty-eight".