220440362543 has 2 divisors, whose sum is σ = 220440362544. Its totient is φ = 220440362542.

The previous prime is 220440362509. The next prime is 220440362587. The reversal of 220440362543 is 345263044022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220440362543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220440362503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110220181271 + 110220181272.

It is an arithmetic number, because the mean of its divisors is an integer number (110220181272).

Almost surely, 2^220440362543 is an apocalyptic number.

220440362543 is a deficient number, since it is larger than the sum of its proper divisors (1).

220440362543 is an equidigital number, since it uses as much as digits as its factorization.

220440362543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 35.

The spelling of 220440362543 in words is "two hundred twenty billion, four hundred forty million, three hundred sixty-two thousand, five hundred forty-three".