2006215671 has 4 divisors (see below), whose sum is σ = 2674954232. Its totient is φ = 1337477112.

The previous prime is 2006215669. The next prime is 2006215699. The reversal of 2006215671 is 1765126002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2006215671 - 2¹ = 2006215669 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 (2006210671) 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, 334369276 + ... + 334369281.

It is an arithmetic number, because the mean of its divisors is an integer number (668738558).

Almost surely, 2^2006215671 is an apocalyptic number.

2006215671 is a deficient number, since it is larger than the sum of its proper divisors (668738561).

2006215671 is an equidigital number, since it uses as much as digits as its factorization.

2006215671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668738560.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 2006215671 is about 44790.7989546960. The cubic root of 2006215671 is about 1261.2249092215.

The spelling of 2006215671 in words is "two billion, six million, two hundred fifteen thousand, six hundred seventy-one".