2006616453221 has 4 divisors (see below), whose sum is σ = 2006628233952. Its totient is φ = 2006604672492.

The previous prime is 2006616453203. The next prime is 2006616453239. The reversal of 2006616453221 is 1223546166002.

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 an interprime number because it is at equal distance from previous prime (2006616453203) and next prime (2006616453239).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2006616453221 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 (2006616452221) 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, 5631065 + ... + 5976798.

It is an arithmetic number, because the mean of its divisors is an integer number (501657058488).

Almost surely, 2^{2006616453221} is an apocalyptic number.

It is an amenable number.

2006616453221 is a deficient number, since it is larger than the sum of its proper divisors (11780731).

2006616453221 is a wasteful number, since it uses less digits than its factorization.

2006616453221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780730.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 2006616453221 in words is "two trillion, six billion, six hundred sixteen million, four hundred fifty-three thousand, two hundred twenty-one".