4366505561 has 16 divisors (see below), whose sum is σ = 4803446400. Its totient is φ = 3936366720.

The previous prime is 4366505543. The next prime is 4366505579. The reversal of 4366505561 is 1655056634.

It is an interprime number because it is at equal distance from previous prime (4366505543) and next prime (4366505579).

It is not a de Polignac number, because 4366505561 - 2¹⁰ = 4366504537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4366505581) 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 15 ways as a sum of consecutive naturals, for example, 681971 + ... + 688343.

It is an arithmetic number, because the mean of its divisors is an integer number (300215400).

Almost surely, 2^4366505561 is an apocalyptic number.

It is an amenable number.

4366505561 is a deficient number, since it is larger than the sum of its proper divisors (436940839).

4366505561 is a wasteful number, since it uses less digits than its factorization.

4366505561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 4366505561 is about 66079.5396548735. The cubic root of 4366505561 is about 1634.4739598353.

The spelling of 4366505561 in words is "four billion, three hundred sixty-six million, five hundred five thousand, five hundred sixty-one".