345220560522 has 32 divisors (see below), whose sum is σ = 772756502400. Its totient is φ = 114233565024.

The previous prime is 345220560499. The next prime is 345220560539. The reversal of 345220560522 is 225065022543.

345220560522 is a `hidden beast` number, since 3 + 4 + 5 + 2 + 20 + 5 + 605 + 22 = 666.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23324622 + ... + 23339417.

It is an arithmetic number, because the mean of its divisors is an integer number (24148640700).

Almost surely, 2^345220560522 is an apocalyptic number.

345220560522 is an abundant number, since it is smaller than the sum of its proper divisors (427535941878).

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

345220560522 is a wasteful number, since it uses less digits than its factorization.

345220560522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46664187 (or 46664181 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 345220560522 in words is "three hundred forty-five billion, two hundred twenty million, five hundred sixty thousand, five hundred twenty-two".