166532850019 has 2 divisors, whose sum is σ = 166532850020. Its totient is φ = 166532850018.

The previous prime is 166532849953. The next prime is 166532850023. The reversal of 166532850019 is 910058235661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166532850019 - 2⁷ = 166532849891 is a prime.

It is a super-2 number, since 2×166532850019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166532850619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83266425009 + 83266425010.

It is an arithmetic number, because the mean of its divisors is an integer number (83266425010).

Almost surely, 2^166532850019 is an apocalyptic number.

166532850019 is a deficient number, since it is larger than the sum of its proper divisors (1).

166532850019 is an equidigital number, since it uses as much as digits as its factorization.

166532850019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 166532850019 in words is "one hundred sixty-six billion, five hundred thirty-two million, eight hundred fifty thousand, nineteen".