18203003364 has 96 divisors (see below), whose sum is σ = 52783144960. Its totient is φ = 4754153088.

The previous prime is 18203003327. The next prime is 18203003369. The reversal of 18203003364 is 46330030281.

It is not an unprimeable number, because it can be changed into a prime (18203003369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31557 + ... + 193395.

Almost surely, 2^18203003364 is an apocalyptic number.

18203003364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18203003364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26391572480).

18203003364 is an abundant number, since it is smaller than the sum of its proper divisors (34580141596).

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

18203003364 is a wasteful number, since it uses less digits than its factorization.

18203003364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161969 (or 161967 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 18203003364 in words is "eighteen billion, two hundred three million, three thousand, three hundred sixty-four".