166003655459 has 2 divisors, whose sum is σ = 166003655460. Its totient is φ = 166003655458.

The previous prime is 166003655429. The next prime is 166003655473. The reversal of 166003655459 is 954556300661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166003655459 - 2²⁸ = 165735220003 is a prime.

It is not a weakly prime, because it can be changed into another prime (166003655429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83001827729 + 83001827730.

It is an arithmetic number, because the mean of its divisors is an integer number (83001827730).

Almost surely, 2^166003655459 is an apocalyptic number.

166003655459 is a deficient number, since it is larger than the sum of its proper divisors (1).

166003655459 is an equidigital number, since it uses as much as digits as its factorization.

166003655459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 166003655459 in words is "one hundred sixty-six billion, three million, six hundred fifty-five thousand, four hundred fifty-nine".