220653645409 has 8 divisors (see below), whose sum is σ = 221291611200. Its totient is φ = 220015928496.

The previous prime is 220653645379. The next prime is 220653645419. The reversal of 220653645409 is 904546356022.

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

It is a cyclic number.

It is not a de Polignac number, because 220653645409 - 2¹¹ = 220653643361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220653645419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793142 + ... + 1912240.

It is an arithmetic number, because the mean of its divisors is an integer number (27661451400).

Almost surely, 2^220653645409 is an apocalyptic number.

It is an amenable number.

220653645409 is a deficient number, since it is larger than the sum of its proper divisors (637965791).

220653645409 is a wasteful number, since it uses less digits than its factorization.

220653645409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124439.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 220653645409 in words is "two hundred twenty billion, six hundred fifty-three million, six hundred forty-five thousand, four hundred nine".