805392990516 has 288 divisors, whose sum is σ = 2091447792000. Its totient is φ = 240358440960.

The previous prime is 805392990509. The next prime is 805392990529. The reversal of 805392990516 is 615099293508.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5405322010 + ... + 5405322158.

It is an arithmetic number, because the mean of its divisors is an integer number (7261971500).

Almost surely, 2^805392990516 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 805392990516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045723896000).

805392990516 is an abundant number, since it is smaller than the sum of its proper divisors (1286054801484).

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

805392990516 is a wasteful number, since it uses less digits than its factorization.

805392990516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 57.

The spelling of 805392990516 in words is "eight hundred five billion, three hundred ninety-two million, nine hundred ninety thousand, five hundred sixteen".