166416034305049 has 2 divisors, whose sum is σ = 166416034305050. Its totient is φ = 166416034305048.

The previous prime is 166416034304953. The next prime is 166416034305077. The reversal of 166416034305049 is 940503430614661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114115656695049 + 52300377610000 = 10682493^2 + 7231900^2 .

It is a cyclic number.

It is not a de Polignac number, because 166416034305049 - 2²¹ = 166416032207897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166416034304987 and 166416034305005.

It is not a weakly prime, because it can be changed into another prime (166416034305089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83208017152524 + 83208017152525.

It is an arithmetic number, because the mean of its divisors is an integer number (83208017152525).

Almost surely, 2^{166416034305049} is an apocalyptic number.

It is an amenable number.

166416034305049 is a deficient number, since it is larger than the sum of its proper divisors (1).

166416034305049 is an equidigital number, since it uses as much as digits as its factorization.

166416034305049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 166416034305049 in words is "one hundred sixty-six trillion, four hundred sixteen billion, thirty-four million, three hundred five thousand, forty-nine".