42166311 has 16 divisors (see below), whose sum is σ = 62341248. Its totient is φ = 25135200.

The previous prime is 42166283. The next prime is 42166321. The reversal of 42166311 is 11366124.

It is not a de Polignac number, because 42166311 - 2⁷ = 42166183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42166321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8461 + ... + 12486.

It is an arithmetic number, because the mean of its divisors is an integer number (3896328).

Almost surely, 2^42166311 is an apocalyptic number.

42166311 is a deficient number, since it is larger than the sum of its proper divisors (20174937).

42166311 is a wasteful number, since it uses less digits than its factorization.

42166311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21022.

The product of its digits is 864, while the sum is 24.

The square root of 42166311 is about 6493.5591935394. The cubic root of 42166311 is about 348.0608709084.

The spelling of 42166311 in words is "forty-two million, one hundred sixty-six thousand, three hundred eleven".