42555438315163 has 2 divisors, whose sum is σ = 42555438315164. Its totient is φ = 42555438315162.

The previous prime is 42555438315119. The next prime is 42555438315211. The reversal of 42555438315163 is 36151383455524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42555438315163 - 2²¹ = 42555436218011 is a prime.

It is a super-2 number, since 2×42555438315163² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42555438415163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277719157581 + 21277719157582.

It is an arithmetic number, because the mean of its divisors is an integer number (21277719157582).

Almost surely, 2^{42555438315163} is an apocalyptic number.

42555438315163 is a deficient number, since it is larger than the sum of its proper divisors (1).

42555438315163 is an equidigital number, since it uses as much as digits as its factorization.

42555438315163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920000, while the sum is 55.

The spelling of 42555438315163 in words is "forty-two trillion, five hundred fifty-five billion, four hundred thirty-eight million, three hundred fifteen thousand, one hundred sixty-three".