6694143844608 has 1296 divisors, whose sum is σ = 22858403568000. Its totient is φ = 1951041945600.

The previous prime is 6694143844601. The next prime is 6694143844621. The reversal of 6694143844608 is 8064483414966.

It is a happy number.

6694143844608 is a `hidden beast` number, since 6 + 6 + 9 + 4 + 14 + 3 + 8 + 4 + 4 + 608 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is not an unprimeable number, because it can be changed into a prime (6694143844601) 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, 33638913693 + ... + 33638913891.

Almost surely, 2^{6694143844608} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6694143844608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11429201784000).

6694143844608 is an abundant number, since it is smaller than the sum of its proper divisors (16164259723392).

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

6694143844608 is a wasteful number, since it uses less digits than its factorization.

6694143844608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 63.

The spelling of 6694143844608 in words is "six trillion, six hundred ninety-four billion, one hundred forty-three million, eight hundred forty-four thousand, six hundred eight".