2045866603880 has 64 divisors (see below), whose sum is σ = 5024846534400. Its totient is φ = 743481276160.

The previous prime is 2045866603877. The next prime is 2045866603919. The reversal of 2045866603880 is 883066685402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772115 + ... + 2165154.

It is an arithmetic number, because the mean of its divisors is an integer number (78513227100).

Almost surely, 2^{2045866603880} is an apocalyptic number.

2045866603880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045866603880 is an abundant number, since it is smaller than the sum of its proper divisors (2978979930520).

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

2045866603880 is a wasteful number, since it uses less digits than its factorization.

2045866603880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938874 (or 2938870 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 2045866603880 in words is "two trillion, forty-five billion, eight hundred sixty-six million, six hundred three thousand, eight hundred eighty".