7166330161 has 4 divisors (see below), whose sum is σ = 7587879012. Its totient is φ = 6744781312.

The previous prime is 7166330147. The next prime is 7166330167. The reversal of 7166330161 is 1610336617.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2803067136 + 4363263025 = 52944^2 + 66055^2 .

It is a cyclic number.

It is not a de Polignac number, because 7166330161 - 2⁹ = 7166329649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7166330167) 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, 210774400 + ... + 210774433.

It is an arithmetic number, because the mean of its divisors is an integer number (1896969753).

Almost surely, 2^7166330161 is an apocalyptic number.

It is an amenable number.

7166330161 is a deficient number, since it is larger than the sum of its proper divisors (421548851).

7166330161 is a wasteful number, since it uses less digits than its factorization.

7166330161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421548850.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 7166330161 is about 84654.1798200183. The cubic root of 7166330161 is about 1927.9640768869.

Adding to 7166330161 its reverse (1610336617), we get a palindrome (8776666778).

The spelling of 7166330161 in words is "seven billion, one hundred sixty-six million, three hundred thirty thousand, one hundred sixty-one".