1606214024221 has 4 divisors (see below), whose sum is σ = 1606229892000. Its totient is φ = 1606198156444.

The previous prime is 1606214024213. The next prime is 1606214024227. The reversal of 1606214024221 is 1224204126061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1606214024221 - 2³ = 1606214024213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606214024227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7781071 + ... + 7984828.

It is an arithmetic number, because the mean of its divisors is an integer number (401557473000).

Almost surely, 2^{1606214024221} is an apocalyptic number.

It is an amenable number.

1606214024221 is a deficient number, since it is larger than the sum of its proper divisors (15867779).

1606214024221 is a wasteful number, since it uses less digits than its factorization.

1606214024221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15867778.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 1606214024221 in words is "one trillion, six hundred six billion, two hundred fourteen million, twenty-four thousand, two hundred twenty-one".