216144354000 has 80 divisors (see below), whose sum is σ = 696849416640. Its totient is φ = 57638492800.

The previous prime is 216144353987. The next prime is 216144354001. The reversal of 216144354000 is 453441612.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216144354001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18006030 + ... + 18018029.

It is an arithmetic number, because the mean of its divisors is an integer number (8710617708).

Almost surely, 2^216144354000 is an apocalyptic number.

216144354000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216144354000 is an abundant number, since it is smaller than the sum of its proper divisors (480705062640).

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

216144354000 is a wasteful number, since it uses less digits than its factorization.

216144354000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36024085 (or 36024069 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 216144354000 its reverse (453441612), we get a palindrome (216597795612).

The spelling of 216144354000 in words is "two hundred sixteen billion, one hundred forty-four million, three hundred fifty-four thousand".