166526711671241 has 4 divisors (see below), whose sum is σ = 167457028496400. Its totient is φ = 165596394846084.

The previous prime is 166526711671189. The next prime is 166526711671261. The reversal of 166526711671241 is 142176117625661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166526711671241 is a prime.

It is a super-2 number, since 2×166526711671241² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166526711671261) 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, 465158412311 + ... + 465158412668.

It is an arithmetic number, because the mean of its divisors is an integer number (41864257124100).

Almost surely, 2^{166526711671241} is an apocalyptic number.

It is an amenable number.

166526711671241 is a deficient number, since it is larger than the sum of its proper divisors (930316825159).

166526711671241 is an equidigital number, since it uses as much as digits as its factorization.

166526711671241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930316825158.

The product of its digits is 5080320, while the sum is 56.

The spelling of 166526711671241 in words is "one hundred sixty-six trillion, five hundred twenty-six billion, seven hundred eleven million, six hundred seventy-one thousand, two hundred forty-one".