220816009458 has 54 divisors (see below), whose sum is σ = 525934988397. Its totient is φ = 66907296720.

The previous prime is 220816009457. The next prime is 220816009471. The reversal of 220816009458 is 854900618022.

It can be written as a sum of positive squares in 2 ways, for example, as 206458458129 + 14357551329 = 454377^2 + 119823^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332277.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220816009457) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21925248 + ... + 21935316.

Almost surely, 2^220816009458 is an apocalyptic number.

220816009458 is an abundant number, since it is smaller than the sum of its proper divisors (305118978939).

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

220816009458 is an equidigital number, since it uses as much as digits as its factorization.

220816009458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20168 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 220816009458 in words is "two hundred twenty billion, eight hundred sixteen million, nine thousand, four hundred fifty-eight".