2249820566 has 16 divisors (see below), whose sum is σ = 3860213760. Its totient is φ = 963364200.

The previous prime is 2249820553. The next prime is 2249820577. The reversal of 2249820566 is 6650289422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53696 + ... + 85923.

It is an arithmetic number, because the mean of its divisors is an integer number (241263360).

Almost surely, 2^2249820566 is an apocalyptic number.

2249820566 is a deficient number, since it is larger than the sum of its proper divisors (1610393194).

2249820566 is a wasteful number, since it uses less digits than its factorization.

2249820566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140779.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 2249820566 is about 47432.2734643829. The cubic root of 2249820566 is about 1310.3358628369.

The spelling of 2249820566 in words is "two billion, two hundred forty-nine million, eight hundred twenty thousand, five hundred sixty-six".