166289240107 has 2 divisors, whose sum is σ = 166289240108. Its totient is φ = 166289240106.

The previous prime is 166289240093. The next prime is 166289240113. The reversal of 166289240107 is 701042982661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166289240107 is a prime.

It is a super-2 number, since 2×166289240107² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166289246107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83144620053 + 83144620054.

It is an arithmetic number, because the mean of its divisors is an integer number (83144620054).

Almost surely, 2^166289240107 is an apocalyptic number.

166289240107 is a deficient number, since it is larger than the sum of its proper divisors (1).

166289240107 is an equidigital number, since it uses as much as digits as its factorization.

166289240107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 166289240107 in words is "one hundred sixty-six billion, two hundred eighty-nine million, two hundred forty thousand, one hundred seven".