2045556611 has 16 divisors (see below), whose sum is σ = 2356121280. Its totient is φ = 1739612160.

The previous prime is 2045556593. The next prime is 2045556631. The reversal of 2045556611 is 1166555402.

It is a cyclic number.

It is not a de Polignac number, because 2045556611 - 2¹⁰ = 2045555587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045556631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1451075 + ... + 1452483.

It is an arithmetic number, because the mean of its divisors is an integer number (147257580).

Almost surely, 2^2045556611 is an apocalyptic number.

2045556611 is a deficient number, since it is larger than the sum of its proper divisors (310564669).

2045556611 is a wasteful number, since it uses less digits than its factorization.

2045556611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2045556611 is about 45227.8300496497. The cubic root of 2045556611 is about 1269.4156095724.

The spelling of 2045556611 in words is "two billion, forty-five million, five hundred fifty-six thousand, six hundred eleven".