2045280066 has 16 divisors (see below), whose sum is σ = 4108425600. Its totient is φ = 678782448.

The previous prime is 2045280007. The next prime is 2045280067. The reversal of 2045280066 is 6600825402.

It is not an unprimeable number, because it can be changed into a prime (2045280067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742906 + ... + 745653.

It is an arithmetic number, because the mean of its divisors is an integer number (256776600).

Almost surely, 2^2045280066 is an apocalyptic number.

2045280066 is an abundant number, since it is smaller than the sum of its proper divisors (2063145534).

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

2045280066 is a wasteful number, since it uses less digits than its factorization.

2045280066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488793.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 2045280066 is about 45224.7727025797. The cubic root of 2045280066 is about 1269.3584016127.

The spelling of 2045280066 in words is "two billion, forty-five million, two hundred eighty thousand, sixty-six".