220445631601 has 16 divisors (see below), whose sum is σ = 240175514880. Its totient is φ = 201113827200.

The previous prime is 220445631563. The next prime is 220445631619. The reversal of 220445631601 is 106136544022.

220445631601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220445631601 - 2²⁷ = 220311413873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220445631631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2679586 + ... + 2760628.

It is an arithmetic number, because the mean of its divisors is an integer number (15010969680).

Almost surely, 2^220445631601 is an apocalyptic number.

It is an amenable number.

220445631601 is a deficient number, since it is larger than the sum of its proper divisors (19729883279).

220445631601 is a wasteful number, since it uses less digits than its factorization.

220445631601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83496.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 220445631601 in words is "two hundred twenty billion, four hundred forty-five million, six hundred thirty-one thousand, six hundred one".