2661682845 has 32 divisors (see below), whose sum is σ = 4338472320. Its totient is φ = 1393079040.

The previous prime is 2661682831. The next prime is 2661682853. The reversal of 2661682845 is 5482861662.

It is not a de Polignac number, because 2661682845 - 2⁶ = 2661682781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2661682794 and 2661682803.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 424191 + ... + 430419.

It is an arithmetic number, because the mean of its divisors is an integer number (135577260).

Almost surely, 2^2661682845 is an apocalyptic number.

It is an amenable number.

2661682845 is a deficient number, since it is larger than the sum of its proper divisors (1676789475).

2661682845 is a wasteful number, since it uses less digits than its factorization.

2661682845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765.

The product of its digits is 1105920, while the sum is 48.

The square root of 2661682845 is about 51591.4997359061. The cubic root of 2661682845 is about 1385.8581127176.

The spelling of 2661682845 in words is "two billion, six hundred sixty-one million, six hundred eighty-two thousand, eight hundred forty-five".