1816550560 has 48 divisors (see below), whose sum is σ = 4681750752. Its totient is φ = 660563200.

The previous prime is 1816550501. The next prime is 1816550563. The reversal of 1816550560 is 650556181.

It is not an unprimeable number, because it can be changed into a prime (1816550563) by changing a digit.

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, 514306 + ... + 517825.

It is an arithmetic number, because the mean of its divisors is an integer number (97536474).

Almost surely, 2^1816550560 is an apocalyptic number.

1816550560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1816550560 is an abundant number, since it is smaller than the sum of its proper divisors (2865200192).

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

1816550560 is a wasteful number, since it uses less digits than its factorization.

1816550560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032157 (or 1032149 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 1816550560 is about 42621.0107810690. The cubic root of 1816550560 is about 1220.1573209289.

The spelling of 1816550560 in words is "one billion, eight hundred sixteen million, five hundred fifty thousand, five hundred sixty".