355705232020 has 24 divisors (see below), whose sum is σ = 747012286944. Its totient is φ = 142276130976.

The previous prime is 355705231991. The next prime is 355705232023. The reversal of 355705232020 is 20232507553.

It is a super-3 number, since 3×355705232020³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355705232023) 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, 133387 + ... + 853933.

It is an arithmetic number, because the mean of its divisors is an integer number (31125511956).

Almost surely, 2^355705232020 is an apocalyptic number.

It is an amenable number.

355705232020 is an abundant number, since it is smaller than the sum of its proper divisors (391307054924).

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

355705232020 is a wasteful number, since it uses less digits than its factorization.

355705232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745239 (or 745237 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 34.

Adding to 355705232020 its reverse (20232507553), we get a palindrome (375937739573).

The spelling of 355705232020 in words is "three hundred fifty-five billion, seven hundred five million, two hundred thirty-two thousand, twenty".