6997814159616 has 288 divisors, whose sum is σ = 23667371347200. Its totient is φ = 1997908623360.

The previous prime is 6997814159563. The next prime is 6997814159659. The reversal of 6997814159616 is 6169514187996.

6997814159616 is a `hidden beast` number, since 6 + 9 + 9 + 7 + 8 + 14 + 1 + 596 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66765940 + ... + 66870668.

Almost surely, 2^{6997814159616} 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 6997814159616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11833685673600).

6997814159616 is an abundant number, since it is smaller than the sum of its proper divisors (16669557187584).

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

6997814159616 is a wasteful number, since it uses less digits than its factorization.

6997814159616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106142 (or 106122 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 72.

The spelling of 6997814159616 in words is "six trillion, nine hundred ninety-seven billion, eight hundred fourteen million, one hundred fifty-nine thousand, six hundred sixteen".