216949569200 has 240 divisors, whose sum is σ = 662200283136. Its totient is φ = 66445747200.

The previous prime is 216949569101. The next prime is 216949569257. The reversal of 216949569200 is 2965949612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1032269 + ... + 1224531.

Almost surely, 2^216949569200 is an apocalyptic number.

216949569200 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 216949569200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331100141568).

216949569200 is an abundant number, since it is smaller than the sum of its proper divisors (445250713936).

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

216949569200 is a wasteful number, since it uses less digits than its factorization.

216949569200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192332 (or 192321 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 216949569200 in words is "two hundred sixteen billion, nine hundred forty-nine million, five hundred sixty-nine thousand, two hundred".