2166132343771 has 16 divisors (see below), whose sum is σ = 2367293711328. Its totient is φ = 1965680006400.

The previous prime is 2166132343723. The next prime is 2166132343777. The reversal of 2166132343771 is 1773432316612.

It is not a de Polignac number, because 2166132343771 - 2⁷ = 2166132343643 is a prime.

It is a super-3 number, since 3×2166132343771³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166132343777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19109241 + ... + 19222261.

It is an arithmetic number, because the mean of its divisors is an integer number (147955856958).

Almost surely, 2^{2166132343771} is an apocalyptic number.

2166132343771 is a deficient number, since it is larger than the sum of its proper divisors (201161367557).

2166132343771 is a wasteful number, since it uses less digits than its factorization.

2166132343771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116142.

The product of its digits is 762048, while the sum is 46.

The spelling of 2166132343771 in words is "two trillion, one hundred sixty-six billion, one hundred thirty-two million, three hundred forty-three thousand, seven hundred seventy-one".