18033266944 has 243 divisors, whose sum is σ = 46451826981. Its totient is φ = 6961489920.

The previous prime is 18033266917. The next prime is 18033266963. The reversal of 18033266944 is 44966233081.

The square root of 18033266944 is 134288.

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., 12569100544 + 5464166400 = 112112^2 + 73920^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18033266894 and 18033266903.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 165442762 + ... + 165442870.

Almost surely, 2^18033266944 is an apocalyptic number.

18033266944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18033266944 is the 134288-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18033266944

18033266944 is an abundant number, since it is smaller than the sum of its proper divisors (28418560037).

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

18033266944 is an equidigital number, since it uses as much as digits as its factorization.

18033266944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 18033266944 in words is "eighteen billion, thirty-three million, two hundred sixty-six thousand, nine hundred forty-four".