355155234020 has 24 divisors (see below), whose sum is σ = 747548471544. Its totient is φ = 141734002176.

The previous prime is 355155233977. The next prime is 355155234029. The reversal of 355155234020 is 20432551553.

It can be written as a sum of positive squares in 4 ways, for example, as 8855939236 + 346299294784 = 94106^2 + 588472^2 .

It is a super-2 number, since 2×355155234020² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (355155234029) 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, 20496839 + ... + 20514158.

It is an arithmetic number, because the mean of its divisors is an integer number (31147852981).

Almost surely, 2^355155234020 is an apocalyptic number.

It is an amenable number.

355155234020 is an abundant number, since it is smaller than the sum of its proper divisors (392393237524).

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

355155234020 is a wasteful number, since it uses less digits than its factorization.

355155234020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41011439 (or 41011437 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 355155234020 its reverse (20432551553), we get a palindrome (375587785573).

The spelling of 355155234020 in words is "three hundred fifty-five billion, one hundred fifty-five million, two hundred thirty-four thousand, twenty".