18283366656 has 189 divisors, whose sum is σ = 54893316009. Its totient is φ = 6074984448.

The previous prime is 18283366597. The next prime is 18283366663. The reversal of 18283366656 is 65666338281.

It is a happy number.

The square root of 18283366656 is 135216.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 116640000 + 18166726656 = 10800^2 + 134784^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 58413156 + ... + 58413468.

Almost surely, 2^18283366656 is an apocalyptic number.

18283366656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18283366656 is the 135216-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18283366656

18283366656 is an abundant number, since it is smaller than the sum of its proper divisors (36609949353).

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

18283366656 is an frugal number, since it uses more digits than its factorization.

18283366656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 318 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 18283366656 in words is "eighteen billion, two hundred eighty-three million, three hundred sixty-six thousand, six hundred fifty-six".