166415415059 has 2 divisors, whose sum is σ = 166415415060. Its totient is φ = 166415415058.

The previous prime is 166415415031. The next prime is 166415415137. The reversal of 166415415059 is 950514514661.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166415415059 is a prime.

It is not a weakly prime, because it can be changed into another prime (166415415029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83207707529 + 83207707530.

It is an arithmetic number, because the mean of its divisors is an integer number (83207707530).

Almost surely, 2^166415415059 is an apocalyptic number.

166415415059 is a deficient number, since it is larger than the sum of its proper divisors (1).

166415415059 is an equidigital number, since it uses as much as digits as its factorization.

166415415059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 166415415059 in words is "one hundred sixty-six billion, four hundred fifteen million, four hundred fifteen thousand, fifty-nine".