215453533552000 has 128 divisors (see below), whose sum is σ = 535810528188000. Its totient is φ = 86159021414400.

The previous prime is 215453533551979. The next prime is 215453533552031. The reversal of 215453533552000 is 255335354512.

215453533552000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59900551 + ... + 63395449.

Almost surely, 2^{215453533552000} is an apocalyptic number.

215453533552000 is a gapful number since it is divisible by the number (20) 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 215453533552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267905264094000).

215453533552000 is an abundant number, since it is smaller than the sum of its proper divisors (320356994636000).

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

215453533552000 is an equidigital number, since it uses as much as digits as its factorization.

215453533552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498781 (or 3498759 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 43.

The spelling of 215453533552000 in words is "two hundred fifteen trillion, four hundred fifty-three billion, five hundred thirty-three million, five hundred fifty-two thousand".