13578220806 has 16 divisors (see below), whose sum is σ = 27157897200. Its totient is φ = 4525831008.

The previous prime is 13578220793. The next prime is 13578220847. The reversal of 13578220806 is 60802287531.

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, 89040 + ... + 187308.

It is an arithmetic number, because the mean of its divisors is an integer number (1697368575).

Almost surely, 2^13578220806 is an apocalyptic number.

13578220806 is an abundant number, since it is smaller than the sum of its proper divisors (13579676394).

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

13578220806 is a wasteful number, since it uses less digits than its factorization.

13578220806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121303.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 13578220806 in words is "thirteen billion, five hundred seventy-eight million, two hundred twenty thousand, eight hundred six".