166711875328427 has 8 divisors (see below), whose sum is σ = 195857308078320. Its totient is φ = 139898077198560.

The previous prime is 166711875328417. The next prime is 166711875328459. The reversal of 166711875328427 is 724823578117661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166711875328427 - 2²⁰ = 166711874279851 is a prime.

It is a super-2 number, since 2×166711875328427² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166711875328417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582908654852 + ... + 582908655137.

It is an arithmetic number, because the mean of its divisors is an integer number (24482163509790).

Almost surely, 2^{166711875328427} is an apocalyptic number.

166711875328427 is a deficient number, since it is larger than the sum of its proper divisors (29145432749893).

166711875328427 is a wasteful number, since it uses less digits than its factorization.

166711875328427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165817310013.

The product of its digits is 189665280, while the sum is 68.

The spelling of 166711875328427 in words is "one hundred sixty-six trillion, seven hundred eleven billion, eight hundred seventy-five million, three hundred twenty-eight thousand, four hundred twenty-seven".