9662662671 has 4 divisors (see below), whose sum is σ = 12883550232. Its totient is φ = 6441775112.

The previous prime is 9662662661. The next prime is 9662662673. The reversal of 9662662671 is 1762662669.

It is a happy number.

9662662671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1762662669 = 3 ⋅587554223.

It is a cyclic number.

It is not a de Polignac number, because 9662662671 - 2¹³ = 9662654479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9662662673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610443776 + ... + 1610443781.

It is an arithmetic number, because the mean of its divisors is an integer number (3220887558).

Almost surely, 2^9662662671 is an apocalyptic number.

9662662671 is a deficient number, since it is larger than the sum of its proper divisors (3220887561).

9662662671 is a wasteful number, since it uses less digits than its factorization.

9662662671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220887560.

The product of its digits is 1959552, while the sum is 51.

The square root of 9662662671 is about 98298.8436910628. The cubic root of 9662662671 is about 2129.9313511345.

The spelling of 9662662671 in words is "nine billion, six hundred sixty-two million, six hundred sixty-two thousand, six hundred seventy-one".