345523220000 has 240 divisors, whose sum is σ = 975041286912. Its totient is φ = 118030080000.

The previous prime is 345523219957. The next prime is 345523220047. The reversal of 345523220000 is 22325543.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39335609 + ... + 39344391.

Almost surely, 2^345523220000 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 345523220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487520643456).

345523220000 is an abundant number, since it is smaller than the sum of its proper divisors (629518066912).

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

345523220000 is an equidigital number, since it uses as much as digits as its factorization.

345523220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101 (or 9078 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 345523220000 its reverse (22325543), we get a palindrome (345545545543).

The spelling of 345523220000 in words is "three hundred forty-five billion, five hundred twenty-three million, two hundred twenty thousand".