4406540040653 has 4 divisors (see below), whose sum is σ = 4407051901980. Its totient is φ = 4406028179328.

The previous prime is 4406540040649. The next prime is 4406540040677. The reversal of 4406540040653 is 3560400456044.

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 2115273542404 + 2291266498249 = 1454398^2 + 1513693^2 .

It is a cyclic number.

It is not a de Polignac number, because 4406540040653 - 2² = 4406540040649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4406540040653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4406540045653) 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, 255917750 + ... + 255934967.

It is an arithmetic number, because the mean of its divisors is an integer number (1101762975495).

Almost surely, 2^{4406540040653} is an apocalyptic number.

It is an amenable number.

4406540040653 is a deficient number, since it is larger than the sum of its proper divisors (511861327).

4406540040653 is an equidigital number, since it uses as much as digits as its factorization.

4406540040653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511861326.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 4406540040653 its reverse (3560400456044), we get a palindrome (7966940496697).

The spelling of 4406540040653 in words is "four trillion, four hundred six billion, five hundred forty million, forty thousand, six hundred fifty-three".