220355340445 has 8 divisors (see below), whose sum is σ = 264558832344. Its totient is φ = 176195989824.

The previous prime is 220355340437. The next prime is 220355340487. The reversal of 220355340445 is 544043553022.

It can be written as a sum of positive squares in 4 ways, for example, as 43388569 + 220311951876 = 6587^2 + 469374^2 .

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 220355340445 - 2³ = 220355340437 is a prime.

It is a Duffinian number.

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, 11024334 + ... + 11044303.

It is an arithmetic number, because the mean of its divisors is an integer number (33069854043).

Almost surely, 2^220355340445 is an apocalyptic number.

It is an amenable number.

220355340445 is a deficient number, since it is larger than the sum of its proper divisors (44203491899).

220355340445 is a wasteful number, since it uses less digits than its factorization.

220355340445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22070639.

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 220355340445 its reverse (544043553022), we get a palindrome (764398893467).

The spelling of 220355340445 in words is "two hundred twenty billion, three hundred fifty-five million, three hundred forty thousand, four hundred forty-five".