4220446606045 has 8 divisors (see below), whose sum is σ = 5066284144824. Its totient is φ = 3375191806464.

The previous prime is 4220446606039. The next prime is 4220446606097. The reversal of 4220446606045 is 5406066440224.

It can be written as a sum of positive squares in 4 ways, for example, as 153956571129 + 4066490034916 = 392373^2 + 2016554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4220446606045 - 2⁷ = 4220446605917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4220446605992 and 4220446606010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145668864 + ... + 145697833.

It is an arithmetic number, because the mean of its divisors is an integer number (633285518103).

Almost surely, 2^{4220446606045} is an apocalyptic number.

It is an amenable number.

4220446606045 is a deficient number, since it is larger than the sum of its proper divisors (845837538779).

4220446606045 is a wasteful number, since it uses less digits than its factorization.

4220446606045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291369599.

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 4220446606045 in words is "four trillion, two hundred twenty billion, four hundred forty-six million, six hundred six thousand, forty-five".