215340355500 has 96 divisors (see below), whose sum is σ = 648694388160. Its totient is φ = 55443942400.

The previous prime is 215340355493. The next prime is 215340355523. The reversal of 215340355500 is 5553043512.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 2431677 + ... + 2518676.

It is an arithmetic number, because the mean of its divisors is an integer number (6757233210).

Almost surely, 2^215340355500 is an apocalyptic number.

215340355500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215340355500 is an abundant number, since it is smaller than the sum of its proper divisors (433354032660).

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

215340355500 is a wasteful number, since it uses less digits than its factorization.

215340355500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950404 (or 4950392 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 215340355500 in words is "two hundred fifteen billion, three hundred forty million, three hundred fifty-five thousand, five hundred".