220043715641 has 2 divisors, whose sum is σ = 220043715642. Its totient is φ = 220043715640.

The previous prime is 220043715589. The next prime is 220043715709. The reversal of 220043715641 is 146517340022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216880215616 + 3163500025 = 465704^2 + 56245^2 .

It is a cyclic number.

It is not a de Polignac number, because 220043715641 - 2²⁶ = 219976606777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (220043715341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110021857820 + 110021857821.

It is an arithmetic number, because the mean of its divisors is an integer number (110021857821).

Almost surely, 2^220043715641 is an apocalyptic number.

It is an amenable number.

220043715641 is a deficient number, since it is larger than the sum of its proper divisors (1).

220043715641 is an equidigital number, since it uses as much as digits as its factorization.

220043715641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 220043715641 in words is "two hundred twenty billion, forty-three million, seven hundred fifteen thousand, six hundred forty-one".