61012017163 has 2 divisors, whose sum is σ = 61012017164. Its totient is φ = 61012017162.

The previous prime is 61012017151. The next prime is 61012017173. The reversal of 61012017163 is 36171021016.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61012017163 is a prime.

It is not a weakly prime, because it can be changed into another prime (61012017133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30506008581 + 30506008582.

It is an arithmetic number, because the mean of its divisors is an integer number (30506008582).

Almost surely, 2^61012017163 is an apocalyptic number.

61012017163 is a deficient number, since it is larger than the sum of its proper divisors (1).

61012017163 is an equidigital number, since it uses as much as digits as its factorization.

61012017163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 61012017163 its reverse (36171021016), we get a palindrome (97183038179).

The spelling of 61012017163 in words is "sixty-one billion, twelve million, seventeen thousand, one hundred sixty-three".