6599350969920 has 336 divisors, whose sum is σ = 23915916640512. Its totient is φ = 1666968145920.

The previous prime is 6599350969859. The next prime is 6599350969951. The reversal of 6599350969920 is 299690539956.

6599350969920 is a `hidden beast` number, since 6 + 5 + 9 + 9 + 3 + 509 + 6 + 99 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6339090 + ... + 7306350.

Almost surely, 2^{6599350969920} is an apocalyptic number.

6599350969920 is a gapful number since it is divisible by the number (60) 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 6599350969920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11957958320256).

6599350969920 is an abundant number, since it is smaller than the sum of its proper divisors (17316565670592).

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

6599350969920 is a wasteful number, since it uses less digits than its factorization.

6599350969920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967410 (or 967397 counting only the distinct ones).

The product of its (nonzero) digits is 318864600, while the sum is 72.

The spelling of 6599350969920 in words is "six trillion, five hundred ninety-nine billion, three hundred fifty million, nine hundred sixty-nine thousand, nine hundred twenty".