220403433961 has 2 divisors, whose sum is σ = 220403433962. Its totient is φ = 220403433960.

The previous prime is 220403433941. The next prime is 220403434037. The reversal of 220403433961 is 169334304022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116293958361 + 104109475600 = 341019^2 + 322660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220403433961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220403433961.

It is not a weakly prime, because it can be changed into another prime (220403433911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110201716980 + 110201716981.

It is an arithmetic number, because the mean of its divisors is an integer number (110201716981).

Almost surely, 2^220403433961 is an apocalyptic number.

It is an amenable number.

220403433961 is a deficient number, since it is larger than the sum of its proper divisors (1).

220403433961 is an equidigital number, since it uses as much as digits as its factorization.

220403433961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

Adding to 220403433961 its reverse (169334304022), we get a palindrome (389737737983).

The spelling of 220403433961 in words is "two hundred twenty billion, four hundred three million, four hundred thirty-three thousand, nine hundred sixty-one".