2066348881 has 8 divisors (see below), whose sum is σ = 2080392480. Its totient is φ = 2052322272.

The previous prime is 2066348839. The next prime is 2066348887. The reversal of 2066348881 is 1888436602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2066348881 is a prime.

It is a super-2 number, since 2×2066348881² = 8539595396019904322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066348887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323325 + ... + 329653.

It is an arithmetic number, because the mean of its divisors is an integer number (260049060).

Almost surely, 2^2066348881 is an apocalyptic number.

It is an amenable number.

2066348881 is a deficient number, since it is larger than the sum of its proper divisors (14043599).

2066348881 is a wasteful number, since it uses less digits than its factorization.

2066348881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495.

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 2066348881 is about 45457.1103459074. The cubic root of 2066348881 is about 1273.7021535996.

The spelling of 2066348881 in words is "two billion, sixty-six million, three hundred forty-eight thousand, eight hundred eighty-one".