340635220543 has 2 divisors, whose sum is σ = 340635220544. Its totient is φ = 340635220542.

The previous prime is 340635220537. The next prime is 340635220559. The reversal of 340635220543 is 345022536043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340635220543 - 2⁵ = 340635220511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340635220843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170317610271 + 170317610272.

It is an arithmetic number, because the mean of its divisors is an integer number (170317610272).

Almost surely, 2^340635220543 is an apocalyptic number.

340635220543 is a deficient number, since it is larger than the sum of its proper divisors (1).

340635220543 is an equidigital number, since it uses as much as digits as its factorization.

340635220543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 340635220543 its reverse (345022536043), we get a palindrome (685657756586).

The spelling of 340635220543 in words is "three hundred forty billion, six hundred thirty-five million, two hundred twenty thousand, five hundred forty-three".