6855331320 has 192 divisors, whose sum is σ = 23851376640. Its totient is φ = 1769040000.

The previous prime is 6855331313. The next prime is 6855331331. The reversal of 6855331320 is 231335586.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 289945 + ... + 312695.

It is an arithmetic number, because the mean of its divisors is an integer number (124225920).

Almost surely, 2^6855331320 is an apocalyptic number.

6855331320 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 6855331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11925688320).

6855331320 is an abundant number, since it is smaller than the sum of its proper divisors (16996045320).

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

6855331320 is a wasteful number, since it uses less digits than its factorization.

6855331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22808 (or 22792 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 6855331320 is about 82796.9282038893. The cubic root of 6855331320 is about 1899.6611879700.

The spelling of 6855331320 in words is "six billion, eight hundred fifty-five million, three hundred thirty-one thousand, three hundred twenty".