9662662668 has 12 divisors (see below), whose sum is σ = 22546212920. Its totient is φ = 3220887552.

The previous prime is 9662662661. The next prime is 9662662673. The reversal of 9662662668 is 8662662669.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (9662662661) 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, 402610933 + ... + 402610956.

Almost surely, 2^9662662668 is an apocalyptic number.

It is an amenable number.

9662662668 is an abundant number, since it is smaller than the sum of its proper divisors (12883550252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9662662668 is a wasteful number, since it uses less digits than its factorization.

9662662668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805221896 (or 805221894 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 57.

The square root of 9662662668 is about 98298.8436758032. The cubic root of 9662662668 is about 2129.9313509141.

Subtracting from 9662662668 its reverse (8662662669), we obtain a palindrome (999999999).

The spelling of 9662662668 in words is "nine billion, six hundred sixty-two million, six hundred sixty-two thousand, six hundred sixty-eight".