2646116571 has 24 divisors (see below), whose sum is σ = 4245711120. Its totient is φ = 1459924032.

The previous prime is 2646116563. The next prime is 2646116573. The reversal of 2646116571 is 1756116462.

It is not a de Polignac number, because 2646116571 - 2³ = 2646116563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2646116573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306096 + ... + 314621.

It is an arithmetic number, because the mean of its divisors is an integer number (176904630).

Almost surely, 2^2646116571 is an apocalyptic number.

2646116571 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2646116571 is a deficient number, since it is larger than the sum of its proper divisors (1599594549).

2646116571 is a wasteful number, since it uses less digits than its factorization.

2646116571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620763 (or 620756 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 2646116571 is about 51440.4176790974. The cubic root of 2646116571 is about 1383.1511988525.

The spelling of 2646116571 in words is "two billion, six hundred forty-six million, one hundred sixteen thousand, five hundred seventy-one".