215355830000 has 100 divisors (see below), whose sum is σ = 552068906400. Its totient is φ = 81075072000.

The previous prime is 215355829981. The next prime is 215355830047. The reversal of 215355830000 is 38553512.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 463400 + ... + 803399.

It is an arithmetic number, because the mean of its divisors is an integer number (5520689064).

Almost surely, 2^215355830000 is an apocalyptic number.

215355830000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215355830000 is an abundant number, since it is smaller than the sum of its proper divisors (336713076400).

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

215355830000 is a wasteful number, since it uses less digits than its factorization.

215355830000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266844 (or 1266823 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 215355830000 in words is "two hundred fifteen billion, three hundred fifty-five million, eight hundred thirty thousand".