2665663044 has 48 divisors (see below), whose sum is σ = 6830913600. Its totient is φ = 802349440.

The previous prime is 2665663027. The next prime is 2665663069. The reversal of 2665663044 is 4403665662.

It is a junction number, because it is equal to n+sod(n) for n = 2665662987 and 2665663005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48099 + ... + 87434.

It is an arithmetic number, because the mean of its divisors is an integer number (142310700).

Almost surely, 2^2665663044 is an apocalyptic number.

It is an amenable number.

2665663044 is an abundant number, since it is smaller than the sum of its proper divisors (4165250556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2665663044 is a wasteful number, since it uses less digits than its factorization.

2665663044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135700 (or 135698 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The square root of 2665663044 is about 51630.0595002562. The cubic root of 2665663044 is about 1386.5485585991.

The spelling of 2665663044 in words is "two billion, six hundred sixty-five million, six hundred sixty-three thousand, forty-four".