806416943616 has 100 divisors (see below), whose sum is σ = 2406942362682. Its totient is φ = 268805634048.

The previous prime is 806416943593. The next prime is 806416943621. The reversal of 806416943616 is 616349614608.

806416943616 is a `hidden beast` number, since 8 + 0 + 6 + 4 + 16 + 9 + 4 + 3 + 616 = 666.

It can be written as a sum of positive squares in only one way, i.e., 672531206400 + 133885737216 = 820080^2 + 365904^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9680955 + ... + 9763898.

Almost surely, 2^806416943616 is an apocalyptic number.

It is an amenable number.

806416943616 is an abundant number, since it is smaller than the sum of its proper divisors (1600525419066).

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

806416943616 is an equidigital number, since it uses as much as digits as its factorization.

806416943616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19444883 (or 19444858 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 806416943616 in words is "eight hundred six billion, four hundred sixteen million, nine hundred forty-three thousand, six hundred sixteen".