4416590561 has 4 divisors (see below), whose sum is σ = 4524312324. Its totient is φ = 4308868800.

The previous prime is 4416590543. The next prime is 4416590567. The reversal of 4416590561 is 1650956144.

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 2030854225 + 2385736336 = 45065^2 + 48844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4416590561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 107721721 = 4416590561 / (4 + 4 + 1 + 6 + 5 + 9 + 0 + 5 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4416590567) 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, 53860820 + ... + 53860901.

It is an arithmetic number, because the mean of its divisors is an integer number (1131078081).

Almost surely, 2^4416590561 is an apocalyptic number.

4416590561 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4416590561 is a deficient number, since it is larger than the sum of its proper divisors (107721763).

4416590561 is a wasteful number, since it uses less digits than its factorization.

4416590561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107721762.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 4416590561 is about 66457.4342041581. The cubic root of 4416590561 is about 1640.6995034301.

The spelling of 4416590561 in words is "four billion, four hundred sixteen million, five hundred ninety thousand, five hundred sixty-one".