3220505431345 has 16 divisors (see below), whose sum is σ = 3905732017152. Its totient is φ = 2549068345600.

The previous prime is 3220505431309. The next prime is 3220505431447. The reversal of 3220505431345 is 5431345050223.

3220505431345 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3220505431345 - 2⁷ = 3220505431217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4744081 + ... + 5380270.

It is an arithmetic number, because the mean of its divisors is an integer number (244108251072).

Almost surely, 2^{3220505431345} is an apocalyptic number.

It is an amenable number.

3220505431345 is a deficient number, since it is larger than the sum of its proper divisors (685226585807).

3220505431345 is a wasteful number, since it uses less digits than its factorization.

3220505431345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10125032.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 3220505431345 in words is "three trillion, two hundred twenty billion, five hundred five million, four hundred thirty-one thousand, three hundred forty-five".