220420415513 has 2 divisors, whose sum is σ = 220420415514. Its totient is φ = 220420415512.

The previous prime is 220420415503. The next prime is 220420415533. The reversal of 220420415513 is 315514024022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218358074944 + 2062340569 = 467288^2 + 45413^2 .

It is a cyclic number.

It is not a de Polignac number, because 220420415513 - 2¹² = 220420411417 is a prime.

It is not a weakly prime, because it can be changed into another prime (220420415503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110210207756 + 110210207757.

It is an arithmetic number, because the mean of its divisors is an integer number (110210207757).

Almost surely, 2^220420415513 is an apocalyptic number.

It is an amenable number.

220420415513 is a deficient number, since it is larger than the sum of its proper divisors (1).

220420415513 is an equidigital number, since it uses as much as digits as its factorization.

220420415513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 220420415513 its reverse (315514024022), we get a palindrome (535934439535).

The spelling of 220420415513 in words is "two hundred twenty billion, four hundred twenty million, four hundred fifteen thousand, five hundred thirteen".