61106814169 has 2 divisors, whose sum is σ = 61106814170. Its totient is φ = 61106814168.

The previous prime is 61106814151. The next prime is 61106814179. The reversal of 61106814169 is 96141860116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51693933769 + 9412880400 = 227363^2 + 97020^2 .

It is a cyclic number.

It is not a de Polignac number, because 61106814169 - 2⁵ = 61106814137 is a prime.

It is a super-2 number, since 2×61106814169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61106814179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30553407084 + 30553407085.

It is an arithmetic number, because the mean of its divisors is an integer number (30553407085).

Almost surely, 2^61106814169 is an apocalyptic number.

It is an amenable number.

61106814169 is a deficient number, since it is larger than the sum of its proper divisors (1).

61106814169 is an equidigital number, since it uses as much as digits as its factorization.

61106814169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 61106814169 in words is "sixty-one billion, one hundred six million, eight hundred fourteen thousand, one hundred sixty-nine".