6698169660 has 576 divisors, whose sum is σ = 25434622080. Its totient is φ = 1308303360.

The previous prime is 6698169649. The next prime is 6698169661. The reversal of 6698169660 is 669618966.

It is a self number, because there is not a number n which added to its sum of digits gives 6698169660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6698169661) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 109806030 + ... + 109806090.

It is an arithmetic number, because the mean of its divisors is an integer number (44157330).

Almost surely, 2^6698169660 is an apocalyptic number.

6698169660 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 6698169660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12717311040).

6698169660 is an abundant number, since it is smaller than the sum of its proper divisors (18736452420).

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

6698169660 is a wasteful number, since it uses less digits than its factorization.

6698169660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 57.

The square root of 6698169660 is about 81842.3463739891. The cubic root of 6698169660 is about 1885.0319455545.

The spelling of 6698169660 in words is "six billion, six hundred ninety-eight million, one hundred sixty-nine thousand, six hundred sixty".