6995656980 has 432 divisors, whose sum is σ = 24172162560. Its totient is φ = 1635379200.

The previous prime is 6995656973. The next prime is 6995656981. The reversal of 6995656980 is 896565996.

6995656980 is a `hidden beast` number, since 6 + 9 + 9 + 565 + 69 + 8 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6995656981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 88552581 + ... + 88552659.

It is an arithmetic number, because the mean of its divisors is an integer number (55954080).

Almost surely, 2^6995656980 is an apocalyptic number.

6995656980 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 6995656980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12086081280).

6995656980 is an abundant number, since it is smaller than the sum of its proper divisors (17176505580).

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

6995656980 is a wasteful number, since it uses less digits than its factorization.

6995656980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The square root of 6995656980 is about 83640.0441176354. The cubic root of 6995656980 is about 1912.5354867182.

The spelling of 6995656980 in words is "six billion, nine hundred ninety-five million, six hundred fifty-six thousand, nine hundred eighty".