806396816016 has 135 divisors (see below), whose sum is σ = 2480969769187. Its totient is φ = 244326751680.

The previous prime is 806396816009. The next prime is 806396816021. The reversal of 806396816016 is 610618693608.

The square root of 806396816016 is 897996.

It is a perfect power (a square), and thus also a powerful number.

806396816016 is a `hidden beast` number, since 80 + 6 + 396 + 8 + 160 + 16 = 666.

It is a super-2 number, since 2×806396816016² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 118532071 + ... + 118538873.

Almost surely, 2^806396816016 is an apocalyptic number.

806396816016 is the 897996-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806396816016

806396816016 is an abundant number, since it is smaller than the sum of its proper divisors (1674572953171).

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

806396816016 is an equidigital number, since it uses as much as digits as its factorization.

806396816016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13642 (or 6819 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 806396816016 in words is "eight hundred six billion, three hundred ninety-six million, eight hundred sixteen thousand, sixteen".