2660020044 has 24 divisors (see below), whose sum is σ = 6770960448. Its totient is φ = 806066640.

The previous prime is 2660020019. The next prime is 2660020061. The reversal of 2660020044 is 4400200662.

It is a junction number, because it is equal to n+sod(n) for n = 2660019996 and 2660020023.

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 7 ways as a sum of consecutive naturals, for example, 10075702 + ... + 10075965.

It is an arithmetic number, because the mean of its divisors is an integer number (282123352).

Almost surely, 2^2660020044 is an apocalyptic number.

It is an amenable number.

2660020044 is an abundant number, since it is smaller than the sum of its proper divisors (4110940404).

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

2660020044 is a wasteful number, since it uses less digits than its factorization.

2660020044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20151685 (or 20151683 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2660020044 is about 51575.3821507897. The cubic root of 2660020044 is about 1385.5694624633.

The spelling of 2660020044 in words is "two billion, six hundred sixty million, twenty thousand, forty-four".