2081655349 has 8 divisors (see below), whose sum is σ = 2118832128. Its totient is φ = 2044803600.

The previous prime is 2081655343. The next prime is 2081655353. The reversal of 2081655349 is 9435561802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2081655349 - 2²¹ = 2079558197 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 (2081655343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68317 + ... + 93970.

It is an arithmetic number, because the mean of its divisors is an integer number (264854016).

Almost surely, 2^2081655349 is an apocalyptic number.

It is an amenable number.

2081655349 is a deficient number, since it is larger than the sum of its proper divisors (37176779).

2081655349 is a wasteful number, since it uses less digits than its factorization.

2081655349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162515.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 2081655349 is about 45625.1613586188. The cubic root of 2081655349 is about 1276.8394004960.

The spelling of 2081655349 in words is "two billion, eighty-one million, six hundred fifty-five thousand, three hundred forty-nine".