805199616 has 360 divisors, whose sum is σ = 2700778080. Its totient is φ = 236888064.

The previous prime is 805199581. The next prime is 805199623. The reversal of 805199616 is 616991508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7817421 + ... + 7817523.

Almost surely, 2^805199616 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 805199616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1350389040).

805199616 is an abundant number, since it is smaller than the sum of its proper divisors (1895578464).

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

805199616 is a wasteful number, since it uses less digits than its factorization.

805199616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 805199616 is about 28376.0394699472. The cubic root of 805199616 is about 930.3246317260.

It can be divided in two parts, 805199 and 616, that added together give a triangular number (805815 = T₁₂₆₉).

The spelling of 805199616 in words is "eight hundred five million, one hundred ninety-nine thousand, six hundred sixteen".