220511144145 has 32 divisors (see below), whose sum is σ = 358139232000. Its totient is φ = 115842197504.

The previous prime is 220511144069. The next prime is 220511144207. The reversal of 220511144145 is 541441115022.

It is a cyclic number.

It is not a de Polignac number, because 220511144145 - 2¹⁴ = 220511127761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37081 + ... + 665129.

It is an arithmetic number, because the mean of its divisors is an integer number (11191851000).

Almost surely, 2^220511144145 is an apocalyptic number.

It is an amenable number.

220511144145 is a deficient number, since it is larger than the sum of its proper divisors (137628087855).

220511144145 is a wasteful number, since it uses less digits than its factorization.

220511144145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628409.

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 220511144145 its reverse (541441115022), we get a palindrome (761952259167).

The spelling of 220511144145 in words is "two hundred twenty billion, five hundred eleven million, one hundred forty-four thousand, one hundred forty-five".