2045666312 has 16 divisors (see below), whose sum is σ = 4037499600. Its totient is φ = 968999760.

The previous prime is 2045666303. The next prime is 2045666317. The reversal of 2045666312 is 2136665402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2045666317) 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, 6729014 + ... + 6729317.

It is an arithmetic number, because the mean of its divisors is an integer number (252343725).

Almost surely, 2^2045666312 is an apocalyptic number.

It is an amenable number.

2045666312 is a deficient number, since it is larger than the sum of its proper divisors (1991833288).

2045666312 is a wasteful number, since it uses less digits than its factorization.

2045666312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13458356 (or 13458352 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2045666312 is about 45229.0427933203. The cubic root of 2045666312 is about 1269.4383016312.

It can be divided in two parts, 20456 and 66312, that added together give a palindrome (86768).

The spelling of 2045666312 in words is "two billion, forty-five million, six hundred sixty-six thousand, three hundred twelve".