6669796320 has 864 divisors, whose sum is σ = 27806478336. Its totient is φ = 1441382400.

The previous prime is 6669796297. The next prime is 6669796321. The reversal of 6669796320 is 236979666.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669796321) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 141910537 + ... + 141910583.

It is an arithmetic number, because the mean of its divisors is an integer number (32183424).

Almost surely, 2^6669796320 is an apocalyptic number.

6669796320 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 6669796320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13903239168).

6669796320 is an abundant number, since it is smaller than the sum of its proper divisors (21136682016).

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

6669796320 is a wasteful number, since it uses less digits than its factorization.

6669796320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The square root of 6669796320 is about 81668.8209783881. The cubic root of 6669796320 is about 1882.3665233426.

The spelling of 6669796320 in words is "six billion, six hundred sixty-nine million, seven hundred ninety-six thousand, three hundred twenty".