215145141200 has 120 divisors (see below), whose sum is σ = 564049586016. Its totient is φ = 78210496000.

The previous prime is 215145141199. The next prime is 215145141283. The reversal of 215145141200 is 2141541512.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 215145141200.

It is a congruent number.

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, 20820035 + ... + 20830365.

Almost surely, 2^215145141200 is an apocalyptic number.

215145141200 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 215145141200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282024793008).

215145141200 is an abundant number, since it is smaller than the sum of its proper divisors (348904444816).

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

215145141200 is a wasteful number, since it uses less digits than its factorization.

215145141200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15093 (or 15082 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 215145141200 its reverse (2141541512), we get a palindrome (217286682712).

The spelling of 215145141200 in words is "two hundred fifteen billion, one hundred forty-five million, one hundred forty-one thousand, two hundred".