220040424445 has 16 divisors (see below), whose sum is σ = 266020929648. Its totient is φ = 174717829120.

The previous prime is 220040424431. The next prime is 220040424451. The reversal of 220040424445 is 544424040022.

It can be written as a sum of positive squares in 8 ways, for example, as 7764605689 + 212275818756 = 88117^2 + 460734^2 .

It is a de Polignac number, because none of the positive numbers 2^k-220040424445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4591005 + ... + 4638685.

It is an arithmetic number, because the mean of its divisors is an integer number (16626308103).

Almost surely, 2^220040424445 is an apocalyptic number.

It is an amenable number.

220040424445 is a deficient number, since it is larger than the sum of its proper divisors (45980505203).

220040424445 is a wasteful number, since it uses less digits than its factorization.

220040424445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54560.

The product of its (nonzero) digits is 40960, while the sum is 31.

Adding to 220040424445 its reverse (544424040022), we get a palindrome (764464464467).

The spelling of 220040424445 in words is "two hundred twenty billion, forty million, four hundred twenty-four thousand, four hundred forty-five".