220231561334511 has 8 divisors (see below), whose sum is σ = 294429325967920. Its totient is φ = 146427418795392.

The previous prime is 220231561334497. The next prime is 220231561334567. The reversal of 220231561334511 is 115433165132022.

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

It is not a de Polignac number, because 220231561334511 - 2⁹ = 220231561333999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220231561334511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220231561332511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98405522266 + ... + 98405524503.

It is an arithmetic number, because the mean of its divisors is an integer number (36803665745990).

Almost surely, 2^{220231561334511} is an apocalyptic number.

220231561334511 is a deficient number, since it is larger than the sum of its proper divisors (74197764633409).

220231561334511 is a wasteful number, since it uses less digits than its factorization.

220231561334511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196811047145.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 220231561334511 in words is "two hundred twenty trillion, two hundred thirty-one billion, five hundred sixty-one million, three hundred thirty-four thousand, five hundred eleven".