218135455300 has 72 divisors (see below), whose sum is σ = 552486138624. Its totient is φ = 73198026240.

The previous prime is 218135455297. The next prime is 218135455393. The reversal of 218135455300 is 3554531812.

It is a self number, because there is not a number n which added to its sum of digits gives 218135455300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3282229 + ... + 3348028.

It is an arithmetic number, because the mean of its divisors is an integer number (7673418592).

Almost surely, 2^218135455300 is an apocalyptic number.

218135455300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218135455300 is an abundant number, since it is smaller than the sum of its proper divisors (334350683324).

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

218135455300 is a wasteful number, since it uses less digits than its factorization.

218135455300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6630325 (or 6630318 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 218135455300 in words is "two hundred eighteen billion, one hundred thirty-five million, four hundred fifty-five thousand, three hundred".