3420120204416 has 32 divisors (see below), whose sum is σ = 6822816296700. Its totient is φ = 1707727094784.

The previous prime is 3420120204359. The next prime is 3420120204421. The reversal of 3420120204416 is 6144020210243.

It can be written as a sum of positive squares in 2 ways, for example, as 3409577022016 + 10543182400 = 1846504^2 + 102680^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18132431 + ... + 18320078.

Almost surely, 2^{3420120204416} is an apocalyptic number.

It is an amenable number.

3420120204416 is a deficient number, since it is larger than the sum of its proper divisors (3402696092284).

3420120204416 is an equidigital number, since it uses as much as digits as its factorization.

3420120204416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36453256 (or 36453244 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 3420120204416 its reverse (6144020210243), we get a palindrome (9564140414659).

The spelling of 3420120204416 in words is "three trillion, four hundred twenty billion, one hundred twenty million, two hundred four thousand, four hundred sixteen".