166233740741 has 2 divisors, whose sum is σ = 166233740742. Its totient is φ = 166233740740.

The previous prime is 166233740611. The next prime is 166233740773. The reversal of 166233740741 is 147047332661.

It is a happy number.

166233740741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89074790116 + 77158950625 = 298454^2 + 277775^2 .

It is a cyclic number.

It is not a de Polignac number, because 166233740741 - 2²² = 166229546437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166233740692 and 166233740701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166233748741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83116870370 + 83116870371.

It is an arithmetic number, because the mean of its divisors is an integer number (83116870371).

Almost surely, 2^166233740741 is an apocalyptic number.

It is an amenable number.

166233740741 is a deficient number, since it is larger than the sum of its proper divisors (1).

166233740741 is an equidigital number, since it uses as much as digits as its factorization.

166233740741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 166233740741 in words is "one hundred sixty-six billion, two hundred thirty-three million, seven hundred forty thousand, seven hundred forty-one".