166141011405 has 64 divisors (see below), whose sum is σ = 279594892800. Its totient is φ = 84081693696.

The previous prime is 166141011403. The next prime is 166141011427. The reversal of 166141011405 is 504110141661.

It is not a de Polignac number, because 166141011405 - 2¹ = 166141011403 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166141011401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56184187 + ... + 56187143.

It is an arithmetic number, because the mean of its divisors is an integer number (4368670200).

Almost surely, 2^166141011405 is an apocalyptic number.

166141011405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166141011405 is a deficient number, since it is larger than the sum of its proper divisors (113453881395).

166141011405 is a wasteful number, since it uses less digits than its factorization.

166141011405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230.

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 166141011405 in words is "one hundred sixty-six billion, one hundred forty-one million, eleven thousand, four hundred five".