42016436563 has 2 divisors, whose sum is σ = 42016436564. Its totient is φ = 42016436562.

The previous prime is 42016436537. The next prime is 42016436573. The reversal of 42016436563 is 36563461024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42016436563 is a prime.

It is not a weakly prime, because it can be changed into another prime (42016436503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21008218281 + 21008218282.

It is an arithmetic number, because the mean of its divisors is an integer number (21008218282).

Almost surely, 2^42016436563 is an apocalyptic number.

42016436563 is a deficient number, since it is larger than the sum of its proper divisors (1).

42016436563 is an equidigital number, since it uses as much as digits as its factorization.

42016436563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 40.

Adding to 42016436563 its reverse (36563461024), we get a palindrome (78579897587).

The spelling of 42016436563 in words is "forty-two billion, sixteen million, four hundred thirty-six thousand, five hundred sixty-three".