18965055300 has 144 divisors (see below), whose sum is σ = 55307626752. Its totient is φ = 5017420800.

The previous prime is 18965055299. The next prime is 18965055323. The reversal of 18965055300 is 355056981.

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 47 ways as a sum of consecutive naturals, for example, 30937794 + ... + 30938406.

Almost surely, 2^18965055300 is an apocalyptic number.

18965055300 is a gapful number since it is divisible by the number (10) 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 18965055300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27653813376).

18965055300 is an abundant number, since it is smaller than the sum of its proper divisors (36342571452).

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

18965055300 is a wasteful number, since it uses less digits than its factorization.

18965055300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 18965055300 in words is "eighteen billion, nine hundred sixty-five million, fifty-five thousand, three hundred".