7071648161 has 4 divisors (see below), whose sum is σ = 7078785024. Its totient is φ = 7064511300.

The previous prime is 7071648131. The next prime is 7071648187. The reversal of 7071648161 is 1618461707.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1618461707 = 89 ⋅18184963.

It is a cyclic number.

It is not a de Polignac number, because 7071648161 - 2⁶ = 7071648097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7071648121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566945 + ... + 3568926.

It is an arithmetic number, because the mean of its divisors is an integer number (1769696256).

Almost surely, 2^7071648161 is an apocalyptic number.

It is an amenable number.

7071648161 is a deficient number, since it is larger than the sum of its proper divisors (7136863).

7071648161 is an equidigital number, since it uses as much as digits as its factorization.

7071648161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7136862.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 7071648161 is about 84093.0922311696. The cubic root of 7071648161 is about 1919.4356125605.

The spelling of 7071648161 in words is "seven billion, seventy-one million, six hundred forty-eight thousand, one hundred sixty-one".