215500553200000 has 96 divisors (see below), whose sum is σ = 536612541005520. Its totient is φ = 86200221120000.

The previous prime is 215500553199947. The next prime is 215500553200043. The reversal of 215500553200000 is 2355005512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268975692 + ... + 269775691.

Almost surely, 2^{215500553200000} is an apocalyptic number.

215500553200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215500553200000 is an abundant number, since it is smaller than the sum of its proper divisors (321111987805520).

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

215500553200000 is an frugal number, since it uses more digits than its factorization.

215500553200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538751422 (or 538751390 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 215500553200000 in words is "two hundred fifteen trillion, five hundred billion, five hundred fifty-three million, two hundred thousand".