6348572161 has 4 divisors (see below), whose sum is σ = 6353079300. Its totient is φ = 6344065024.

The previous prime is 6348572117. The next prime is 6348572189. The reversal of 6348572161 is 1612758436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1352768400 + 4995803761 = 36780^2 + 70681^2 .

It is a cyclic number.

It is not a de Polignac number, because 6348572161 - 2¹⁷ = 6348441089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6348578161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2251456 + ... + 2254273.

It is an arithmetic number, because the mean of its divisors is an integer number (1588269825).

Almost surely, 2^6348572161 is an apocalyptic number.

It is an amenable number.

6348572161 is a deficient number, since it is larger than the sum of its proper divisors (4507139).

6348572161 is a wasteful number, since it uses less digits than its factorization.

6348572161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507138.

The product of its digits is 241920, while the sum is 43.

The square root of 6348572161 is about 79677.9276901703. The cubic root of 6348572161 is about 1851.6490930846.

The spelling of 6348572161 in words is "six billion, three hundred forty-eight million, five hundred seventy-two thousand, one hundred sixty-one".