6699228856320 has 2560 divisors, whose sum is σ = 30846425702400. Its totient is φ = 1195879956480.

The previous prime is 6699228856223. The next prime is 6699228856381. The reversal of 6699228856320 is 236588229966.

It is a tau number, because it is divible by the number of its divisors (2560).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 181060239342 + ... + 181060239378.

It is an arithmetic number, because the mean of its divisors is an integer number (12049385040).

Almost surely, 2^{6699228856320} is an apocalyptic number.

6699228856320 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 6699228856320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15423212851200).

6699228856320 is an abundant number, since it is smaller than the sum of its proper divisors (24147196846080).

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

6699228856320 is a wasteful number, since it uses less digits than its factorization.

6699228856320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 134369280, while the sum is 66.

The spelling of 6699228856320 in words is "six trillion, six hundred ninety-nine billion, two hundred twenty-eight million, eight hundred fifty-six thousand, three hundred twenty".