166846144363 has 2 divisors, whose sum is σ = 166846144364. Its totient is φ = 166846144362.

The previous prime is 166846144243. The next prime is 166846144379. The reversal of 166846144363 is 363441648661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166846144363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166846144363.

It is not a weakly prime, because it can be changed into another prime (166846144763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83423072181 + 83423072182.

It is an arithmetic number, because the mean of its divisors is an integer number (83423072182).

Almost surely, 2^166846144363 is an apocalyptic number.

166846144363 is a deficient number, since it is larger than the sum of its proper divisors (1).

166846144363 is an equidigital number, since it uses as much as digits as its factorization.

166846144363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5971968, while the sum is 52.

The spelling of 166846144363 in words is "one hundred sixty-six billion, eight hundred forty-six million, one hundred forty-four thousand, three hundred sixty-three".