166834747063 has 2 divisors, whose sum is σ = 166834747064. Its totient is φ = 166834747062.

The previous prime is 166834747049. The next prime is 166834747087. The reversal of 166834747063 is 360747438661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166834747063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166834746995 and 166834747013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166834741063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83417373531 + 83417373532.

It is an arithmetic number, because the mean of its divisors is an integer number (83417373532).

Almost surely, 2^166834747063 is an apocalyptic number.

166834747063 is a deficient number, since it is larger than the sum of its proper divisors (1).

166834747063 is an equidigital number, since it uses as much as digits as its factorization.

166834747063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 55.

The spelling of 166834747063 in words is "one hundred sixty-six billion, eight hundred thirty-four million, seven hundred forty-seven thousand, sixty-three".