166107582143 has 4 divisors (see below), whose sum is σ = 166161744840. Its totient is φ = 166053419448.

The previous prime is 166107582133. The next prime is 166107582211. The reversal of 166107582143 is 341285701661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341285701661 = 23269 ⋅14666969.

It is a cyclic number.

It is not a de Polignac number, because 166107582143 - 2⁶ = 166107582079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166107582094 and 166107582103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166107582133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27076748 + ... + 27082881.

It is an arithmetic number, because the mean of its divisors is an integer number (41540436210).

Almost surely, 2^166107582143 is an apocalyptic number.

166107582143 is a deficient number, since it is larger than the sum of its proper divisors (54162697).

166107582143 is an equidigital number, since it uses as much as digits as its factorization.

166107582143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54162696.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 166107582143 in words is "one hundred sixty-six billion, one hundred seven million, five hundred eighty-two thousand, one hundred forty-three".