166416034304953 has 2 divisors, whose sum is σ = 166416034304954. Its totient is φ = 166416034304952.

The previous prime is 166416034304899. The next prime is 166416034305049. The reversal of 166416034304953 is 359403430614661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107169639084729 + 59246395220224 = 10352277^2 + 7697168^2 .

It is a cyclic number.

It is not a de Polignac number, because 166416034304953 - 2²¹ = 166416032207801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166416034304894 and 166416034304903.

It is not a weakly prime, because it can be changed into another prime (166416034304353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83208017152476 + 83208017152477.

It is an arithmetic number, because the mean of its divisors is an integer number (83208017152477).

Almost surely, 2^{166416034304953} is an apocalyptic number.

It is an amenable number.

166416034304953 is a deficient number, since it is larger than the sum of its proper divisors (1).

166416034304953 is an equidigital number, since it uses as much as digits as its factorization.

166416034304953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16796160, while the sum is 55.

The spelling of 166416034304953 in words is "one hundred sixty-six trillion, four hundred sixteen billion, thirty-four million, three hundred four thousand, nine hundred fifty-three".