345145215320 has 16 divisors (see below), whose sum is σ = 776576734560. Its totient is φ = 138058086112.

The previous prime is 345145215319. The next prime is 345145215329. The reversal of 345145215320 is 23512541543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345145215329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4314315152 + ... + 4314315231.

It is an arithmetic number, because the mean of its divisors is an integer number (48536045910).

Almost surely, 2^345145215320 is an apocalyptic number.

It is an amenable number.

345145215320 is an abundant number, since it is smaller than the sum of its proper divisors (431431519240).

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

345145215320 is a wasteful number, since it uses less digits than its factorization.

345145215320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8628630394 (or 8628630390 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 345145215320 its reverse (23512541543), we get a palindrome (368657756863).

The spelling of 345145215320 in words is "three hundred forty-five billion, one hundred forty-five million, two hundred fifteen thousand, three hundred twenty".