3420021443555 has 32 divisors (see below), whose sum is σ = 4228499358720. Its totient is φ = 2654433475200.

The previous prime is 3420021443497. The next prime is 3420021443603. The reversal of 3420021443555 is 5553441200243.

3420021443555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3420021443555 - 2¹⁴ = 3420021427171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8710730 + ... + 9094880.

It is an arithmetic number, because the mean of its divisors is an integer number (132140604960).

Almost surely, 2^{3420021443555} is an apocalyptic number.

3420021443555 is a deficient number, since it is larger than the sum of its proper divisors (808477915165).

3420021443555 is a wasteful number, since it uses less digits than its factorization.

3420021443555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384611.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 3420021443555 its reverse (5553441200243), we get a palindrome (8973462643798).

The spelling of 3420021443555 in words is "three trillion, four hundred twenty billion, twenty-one million, four hundred forty-three thousand, five hundred fifty-five".