9665870016 has 112 divisors (see below), whose sum is σ = 27947282688. Its totient is φ = 2924006400.

The previous prime is 9665870003. The next prime is 9665870099. The reversal of 9665870016 is 6100785669.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329046 + ... + 1336298.

Almost surely, 2^9665870016 is an apocalyptic number.

9665870016 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9665870016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13973641344).

9665870016 is an abundant number, since it is smaller than the sum of its proper divisors (18281412672).

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

9665870016 is a wasteful number, since it uses less digits than its factorization.

9665870016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7910 (or 7900 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 9665870016 is about 98315.1565934775. The cubic root of 9665870016 is about 2130.1669890460.

The spelling of 9665870016 in words is "nine billion, six hundred sixty-five million, eight hundred seventy thousand, sixteen".