353342221544 has 96 divisors (see below), whose sum is σ = 744504939000. Its totient is φ = 156955309056.

The previous prime is 353342221523. The next prime is 353342221553. The reversal of 353342221544 is 445122243353.

It can be written as a sum of positive squares in 12 ways, for example, as 39417337444 + 313924884100 = 198538^2 + 560290^2 .

It is a junction number, because it is equal to n+sod(n) for n = 353342221498 and 353342221507.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12414722 + ... + 12443150.

Almost surely, 2^353342221544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 353342221544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372252469500).

353342221544 is an abundant number, since it is smaller than the sum of its proper divisors (391162717456).

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

353342221544 is a wasteful number, since it uses less digits than its factorization.

353342221544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28807 (or 28790 counting only the distinct ones).

The product of its digits is 345600, while the sum is 38.

Adding to 353342221544 its reverse (445122243353), we get a palindrome (798464464897).

The spelling of 353342221544 in words is "three hundred fifty-three billion, three hundred forty-two million, two hundred twenty-one thousand, five hundred forty-four".