185916346061 has 2 divisors, whose sum is σ = 185916346062. Its totient is φ = 185916346060.

The previous prime is 185916345997. The next prime is 185916346069. The reversal of 185916346061 is 160643619581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180099233161 + 5817112900 = 424381^2 + 76270^2 .

It is a cyclic number.

It is not a de Polignac number, because 185916346061 - 2⁶ = 185916345997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185916346069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92958173030 + 92958173031.

It is an arithmetic number, because the mean of its divisors is an integer number (92958173031).

Almost surely, 2^185916346061 is an apocalyptic number.

It is an amenable number.

185916346061 is a deficient number, since it is larger than the sum of its proper divisors (1).

185916346061 is an equidigital number, since it uses as much as digits as its factorization.

185916346061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 185916346061 in words is "one hundred eighty-five billion, nine hundred sixteen million, three hundred forty-six thousand, sixty-one".