6698781250560 has 4224 divisors, whose sum is σ = 31829284454400. Its totient is φ = 1324343623680.

The previous prime is 6698781250519. The next prime is 6698781250571. The reversal of 6698781250560 is 650521878966.

6698781250560 is a `hidden beast` number, since 6 + 6 + 9 + 8 + 7 + 8 + 12 + 50 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 91764126684 + ... + 91764126756.

Almost surely, 2^{6698781250560} is an apocalyptic number.

6698781250560 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 6698781250560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15914642227200).

6698781250560 is an abundant number, since it is smaller than the sum of its proper divisors (25130503203840).

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

6698781250560 is a wasteful number, since it uses less digits than its factorization.

6698781250560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 6698781250560 in words is "six trillion, six hundred ninety-eight billion, seven hundred eighty-one million, two hundred fifty thousand, five hundred sixty".