51106420324163 has 2 divisors, whose sum is σ = 51106420324164. Its totient is φ = 51106420324162.

The previous prime is 51106420324153. The next prime is 51106420324199. The reversal of 51106420324163 is 36142302460115.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51106420324163 is a prime.

It is a super-2 number, since 2×51106420324163² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51106420324153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25553210162081 + 25553210162082.

It is an arithmetic number, because the mean of its divisors is an integer number (25553210162082).

Almost surely, 2^{51106420324163} is an apocalyptic number.

51106420324163 is a deficient number, since it is larger than the sum of its proper divisors (1).

51106420324163 is an equidigital number, since it uses as much as digits as its factorization.

51106420324163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 51106420324163 its reverse (36142302460115), we get a palindrome (87248722784278).

The spelling of 51106420324163 in words is "fifty-one trillion, one hundred six billion, four hundred twenty million, three hundred twenty-four thousand, one hundred sixty-three".