166369143 has 48 divisors (see below), whose sum is σ = 248841216. Its totient is φ = 98609280.

The previous prime is 166369129. The next prime is 166369153. The reversal of 166369143 is 341963661.

It is not a de Polignac number, because 166369143 - 2⁴ = 166369127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166369153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2727333 + ... + 2727393.

It is an arithmetic number, because the mean of its divisors is an integer number (5184192).

Almost surely, 2^166369143 is an apocalyptic number.

166369143 is a deficient number, since it is larger than the sum of its proper divisors (82472073).

166369143 is a wasteful number, since it uses less digits than its factorization.

166369143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 163 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 166369143 is about 12898.4162981352. The cubic root of 166369143 is about 549.9935459298.

The spelling of 166369143 in words is "one hundred sixty-six million, three hundred sixty-nine thousand, one hundred forty-three".