9660643260 has 36 divisors (see below), whose sum is σ = 27051933048. Its totient is φ = 2575968512.

The previous prime is 9660643253. The next prime is 9660643273. The reversal of 9660643260 is 623460669.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 754996 + ... + 767684.

Almost surely, 2^9660643260 is an apocalyptic number.

It is an amenable number.

9660643260 is an abundant number, since it is smaller than the sum of its proper divisors (17391289788).

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

9660643260 is an equidigital number, since it uses as much as digits as its factorization.

9660643260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25390 (or 12699 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 9660643260 is about 98288.5713600518. The cubic root of 9660643260 is about 2129.7829618613.

The spelling of 9660643260 in words is "nine billion, six hundred sixty million, six hundred forty-three thousand, two hundred sixty".