166884087141 has 12 divisors (see below), whose sum is σ = 241170212140. Its totient is φ = 111202787520.

The previous prime is 166884087131. The next prime is 166884087203. The reversal of 166884087141 is 141780488661.

166884087141 is a `hidden beast` number, since 16 + 6 + 88 + 408 + 7 + 141 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 133057152900 + 33826934241 = 364770^2 + 183921^2 .

It is not a de Polignac number, because 166884087141 - 2⁵ = 166884087109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166884087131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4419370 + ... + 4456971.

Almost surely, 2^166884087141 is an apocalyptic number.

It is an amenable number.

166884087141 is a deficient number, since it is larger than the sum of its proper divisors (74286124999).

166884087141 is a wasteful number, since it uses less digits than its factorization.

166884087141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8878436 (or 8878433 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 166884087141 in words is "one hundred sixty-six billion, eight hundred eighty-four million, eighty-seven thousand, one hundred forty-one".