808016409640 has 64 divisors (see below), whose sum is σ = 1983544485120. Its totient is φ = 293789856000.

The previous prime is 808016409623. The next prime is 808016409643. The reversal of 808016409640 is 46904610808.

It is not an unprimeable number, because it can be changed into a prime (808016409643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3831345 + ... + 4036735.

It is an arithmetic number, because the mean of its divisors is an integer number (30992882580).

Almost surely, 2^808016409640 is an apocalyptic number.

It is an amenable number.

808016409640 is an abundant number, since it is smaller than the sum of its proper divisors (1175528075480).

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

808016409640 is a wasteful number, since it uses less digits than its factorization.

808016409640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214354 (or 214350 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 808016409640 in words is "eight hundred eight billion, sixteen million, four hundred nine thousand, six hundred forty".