166260835835143 has 16 divisors (see below), whose sum is σ = 192614551879680. Its totient is φ = 140561354583936.

The previous prime is 166260835835057. The next prime is 166260835835153. The reversal of 166260835835143 is 341538538062661.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166260835835143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166260835835153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153324871 + ... + 154405432.

It is an arithmetic number, because the mean of its divisors is an integer number (12038409492480).

Almost surely, 2^{166260835835143} is an apocalyptic number.

166260835835143 is a deficient number, since it is larger than the sum of its proper divisors (26353716044537).

166260835835143 is an equidigital number, since it uses as much as digits as its factorization.

166260835835143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307731366.

The product of its (nonzero) digits is 74649600, while the sum is 61.

The spelling of 166260835835143 in words is "one hundred sixty-six trillion, two hundred sixty billion, eight hundred thirty-five million, eight hundred thirty-five thousand, one hundred forty-three".