9399606511680 has 1008 divisors, whose sum is σ = 42351944394240. Its totient is φ = 1890149990400.

The previous prime is 9399606511643. The next prime is 9399606511699. The reversal of 9399606511680 is 861156069939.

9399606511680 is a `hidden beast` number, since 9 + 3 + 9 + 9 + 606 + 5 + 1 + 16 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 48024256 + ... + 48219584.

Almost surely, 2^{9399606511680} is an apocalyptic number.

9399606511680 is a gapful number since it is divisible by the number (90) 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 9399606511680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21175972197120).

9399606511680 is an abundant number, since it is smaller than the sum of its proper divisors (32952337882560).

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

9399606511680 is a wasteful number, since it uses less digits than its factorization.

9399606511680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195408 (or 195388 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 9399606511680 in words is "nine trillion, three hundred ninety-nine billion, six hundred six million, five hundred eleven thousand, six hundred eighty".