2040666664 has 32 divisors (see below), whose sum is σ = 4013971200. Its totient is φ = 971266240.

The previous prime is 2040666659. The next prime is 2040666673. The reversal of 2040666664 is 4666660402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45472 + ... + 78415.

It is an arithmetic number, because the mean of its divisors is an integer number (125436600).

Almost surely, 2^2040666664 is an apocalyptic number.

It is an amenable number.

2040666664 is a deficient number, since it is larger than the sum of its proper divisors (1973304536).

2040666664 is a wasteful number, since it uses less digits than its factorization.

2040666664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123993 (or 123989 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 2040666664 is about 45173.7386542225. The cubic root of 2040666664 is about 1268.4032807218.

The spelling of 2040666664 in words is "two billion, forty million, six hundred sixty-six thousand, six hundred sixty-four".