1808916115968 has 800 divisors, whose sum is σ = 6068971560960. Its totient is φ = 532580106240.

The previous prime is 1808916115957. The next prime is 1808916115991. The reversal of 1808916115968 is 8695116198081.

1808916115968 is a `hidden beast` number, since 1 + 8 + 0 + 8 + 9 + 1 + 611 + 5 + 9 + 6 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1985637433 + ... + 1985638343.

Almost surely, 2^{1808916115968} is an apocalyptic number.

1808916115968 is a gapful number since it is divisible by the number (18) 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 1808916115968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3034485780480).

1808916115968 is an abundant number, since it is smaller than the sum of its proper divisors (4260055444992).

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

1808916115968 is a wasteful number, since it uses less digits than its factorization.

1808916115968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 63.

The spelling of 1808916115968 in words is "one trillion, eight hundred eight billion, nine hundred sixteen million, one hundred fifteen thousand, nine hundred sixty-eight".