2266552561 has 16 divisors (see below), whose sum is σ = 2791152000. Its totient is φ = 1792320768.

The previous prime is 2266552543. The next prime is 2266552583. The reversal of 2266552561 is 1652556622.

It is not a de Polignac number, because 2266552561 - 2⁷ = 2266552433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2266552511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187890 + ... + 199588.

It is an arithmetic number, because the mean of its divisors is an integer number (174447000).

Almost surely, 2^2266552561 is an apocalyptic number.

It is an amenable number.

2266552561 is a deficient number, since it is larger than the sum of its proper divisors (524599439).

2266552561 is a wasteful number, since it uses less digits than its factorization.

2266552561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13848.

The product of its digits is 216000, while the sum is 40.

The square root of 2266552561 is about 47608.3244926767. The cubic root of 2266552561 is about 1313.5761813042.

The spelling of 2266552561 in words is "two billion, two hundred sixty-six million, five hundred fifty-two thousand, five hundred sixty-one".