18933033320 has 16 divisors (see below), whose sum is σ = 42599325060. Its totient is φ = 7573213312.

The previous prime is 18933033313. The next prime is 18933033437. The reversal of 18933033320 is 2333033981.

It can be written as a sum of positive squares in 2 ways, for example, as 18085408324 + 847624996 = 134482^2 + 29114^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236662877 + ... + 236662956.

Almost surely, 2^18933033320 is an apocalyptic number.

18933033320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18933033320 is an abundant number, since it is smaller than the sum of its proper divisors (23666291740).

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

18933033320 is a wasteful number, since it uses less digits than its factorization.

18933033320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473325844 (or 473325840 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 18933033320 in words is "eighteen billion, nine hundred thirty-three million, thirty-three thousand, three hundred twenty".