4420665550577 has 4 divisors (see below), whose sum is σ = 4420670065140. Its totient is φ = 4420661036016.

The previous prime is 4420665550571. The next prime is 4420665550579. The reversal of 4420665550577 is 7750555660244.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2619296243776 + 1801369306801 = 1618424^2 + 1342151^2 .

It is a cyclic number.

It is not a de Polignac number, because 4420665550577 - 2⁶ = 4420665550513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4420665550571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103418 + ... + 2975235.

It is an arithmetic number, because the mean of its divisors is an integer number (1105167516285).

Almost surely, 2^{4420665550577} is an apocalyptic number.

It is an amenable number.

4420665550577 is a deficient number, since it is larger than the sum of its proper divisors (4514563).

4420665550577 is a wasteful number, since it uses less digits than its factorization.

4420665550577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514562.

The product of its (nonzero) digits is 35280000, while the sum is 56.

The spelling of 4420665550577 in words is "four trillion, four hundred twenty billion, six hundred sixty-five million, five hundred fifty thousand, five hundred seventy-seven".