6575278161 has 4 divisors (see below), whose sum is σ = 8767037552. Its totient is φ = 4383518772.

The previous prime is 6575278133. The next prime is 6575278163. The reversal of 6575278161 is 1618725756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6575278161 - 2⁹ = 6575277649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6575278161.

It is not an unprimeable number, because it can be changed into a prime (6575278163) 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, 1095879691 + ... + 1095879696.

It is an arithmetic number, because the mean of its divisors is an integer number (2191759388).

Almost surely, 2^6575278161 is an apocalyptic number.

It is an amenable number.

6575278161 is a deficient number, since it is larger than the sum of its proper divisors (2191759391).

6575278161 is a wasteful number, since it uses less digits than its factorization.

6575278161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191759390.

The product of its digits is 705600, while the sum is 48.

The square root of 6575278161 is about 81088.0888971987. The cubic root of 6575278161 is about 1873.4324710779.

The spelling of 6575278161 in words is "six billion, five hundred seventy-five million, two hundred seventy-eight thousand, one hundred sixty-one".