220888915809 has 8 divisors (see below), whose sum is σ = 310019531040. Its totient is φ = 139508788896.

The previous prime is 220888915799. The next prime is 220888915813. The reversal of 220888915809 is 908519888022.

220888915809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220888915809 - 2⁹ = 220888915297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220888915879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1937622012 + ... + 1937622125.

It is an arithmetic number, because the mean of its divisors is an integer number (38752441380).

Almost surely, 2^220888915809 is an apocalyptic number.

It is an amenable number.

220888915809 is a deficient number, since it is larger than the sum of its proper divisors (89130615231).

220888915809 is a wasteful number, since it uses less digits than its factorization.

220888915809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875244159.

The product of its (nonzero) digits is 6635520, while the sum is 60.

The spelling of 220888915809 in words is "two hundred twenty billion, eight hundred eighty-eight million, nine hundred fifteen thousand, eight hundred nine".