2665244043 has 48 divisors (see below), whose sum is σ = 4965292800. Its totient is φ = 1336789440.

The previous prime is 2665244039. The next prime is 2665244077. The reversal of 2665244043 is 3404425662.

It is not a de Polignac number, because 2665244043 - 2² = 2665244039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2665243989 and 2665244007.

It is not an unprimeable number, because it can be changed into a prime (2665244083) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46213 + ... + 86406.

It is an arithmetic number, because the mean of its divisors is an integer number (103443600).

Almost surely, 2^2665244043 is an apocalyptic number.

2665244043 is a deficient number, since it is larger than the sum of its proper divisors (2300048757).

2665244043 is a wasteful number, since it uses less digits than its factorization.

2665244043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132672 (or 132669 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 2665244043 is about 51626.0016174021. The cubic root of 2665244043 is about 1386.4759067966.

The spelling of 2665244043 in words is "two billion, six hundred sixty-five million, two hundred forty-four thousand, forty-three".