5440564161 has 12 divisors (see below), whose sum is σ = 7893214992. Its totient is φ = 3611063256.

The previous prime is 5440564147. The next prime is 5440564163. The reversal of 5440564161 is 1614650445.

5440564161 is a `hidden beast` number, since 5 + 4 + 4 + 0 + 5 + 641 + 6 + 1 = 666.

It is not a de Polignac number, because 5440564161 - 2¹⁰ = 5440563137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5440564163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1329471 + ... + 1333556.

It is an arithmetic number, because the mean of its divisors is an integer number (657767916).

Almost surely, 2^5440564161 is an apocalyptic number.

It is an amenable number.

5440564161 is a deficient number, since it is larger than the sum of its proper divisors (2452650831).

5440564161 is a wasteful number, since it uses less digits than its factorization.

5440564161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663260 (or 2663257 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 5440564161 is about 73760.1800499429. The cubic root of 5440564161 is about 1758.7926638162.

The spelling of 5440564161 in words is "five billion, four hundred forty million, five hundred sixty-four thousand, one hundred sixty-one".