10420663046543 has 2 divisors, whose sum is σ = 10420663046544. Its totient is φ = 10420663046542.

The previous prime is 10420663046531. The next prime is 10420663046603. The reversal of 10420663046543 is 34564036602401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10420663046543 - 2²⁸ = 10420394611087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10420663046494 and 10420663046503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10420663046513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210331523271 + 5210331523272.

It is an arithmetic number, because the mean of its divisors is an integer number (5210331523272).

Almost surely, 2^{10420663046543} is an apocalyptic number.

10420663046543 is a deficient number, since it is larger than the sum of its proper divisors (1).

10420663046543 is an equidigital number, since it uses as much as digits as its factorization.

10420663046543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 44.

Adding to 10420663046543 its reverse (34564036602401), we get a palindrome (44984699648944).

The spelling of 10420663046543 in words is "ten trillion, four hundred twenty billion, six hundred sixty-three million, forty-six thousand, five hundred forty-three".