2066121584 has 20 divisors (see below), whose sum is σ = 4059494640. Its totient is φ = 1018510080.

The previous prime is 2066121583. The next prime is 2066121587. The reversal of 2066121584 is 4851216602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066121583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908249 + ... + 910520.

It is an arithmetic number, because the mean of its divisors is an integer number (202974732).

Almost surely, 2^2066121584 is an apocalyptic number.

It is an amenable number.

2066121584 is a deficient number, since it is larger than the sum of its proper divisors (1993373056).

2066121584 is a wasteful number, since it uses less digits than its factorization.

2066121584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818848 (or 1818842 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2066121584 is about 45454.6101512267. The cubic root of 2066121584 is about 1273.6554497577.

The spelling of 2066121584 in words is "two billion, sixty-six million, one hundred twenty-one thousand, five hundred eighty-four".