655840806 has 16 divisors (see below), whose sum is σ = 1312200000. Its totient is φ = 218527208.

The previous prime is 655840763. The next prime is 655840811. The reversal of 655840806 is 608048556.

655840806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4056 + ... + 36443.

It is an arithmetic number, because the mean of its divisors is an integer number (82012500).

Almost surely, 2^655840806 is an apocalyptic number.

655840806 is an abundant number, since it is smaller than the sum of its proper divisors (656359194).

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

655840806 is a wasteful number, since it uses less digits than its factorization.

655840806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43203.

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 655840806 is about 25609.3890204355. The cubic root of 655840806 is about 868.8260053510.

The spelling of 655840806 in words is "six hundred fifty-five million, eight hundred forty thousand, eight hundred six".