166875379711 has 4 divisors (see below), whose sum is σ = 166894466472. Its totient is φ = 166856292952.

The previous prime is 166875379691. The next prime is 166875379717. The reversal of 166875379711 is 117973578661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166875379711 - 2⁹ = 166875379199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166875379711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166875379717) 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, 9530260 + ... + 9547753.

It is an arithmetic number, because the mean of its divisors is an integer number (41723616618).

Almost surely, 2^166875379711 is an apocalyptic number.

166875379711 is a deficient number, since it is larger than the sum of its proper divisors (19086761).

166875379711 is an equidigital number, since it uses as much as digits as its factorization.

166875379711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19086760.

The product of its digits is 13335840, while the sum is 61.

The spelling of 166875379711 in words is "one hundred sixty-six billion, eight hundred seventy-five million, three hundred seventy-nine thousand, seven hundred eleven".