216108893700 has 288 divisors, whose sum is σ = 835790950400. Its totient is φ = 46796434560.

The previous prime is 216108893687. The next prime is 216108893723. The reversal of 216108893700 is 7398801612.

216108893700 is a `hidden beast` number, since 21 + 610 + 8 + 8 + 9 + 3 + 7 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58197 + ... + 660003.

Almost surely, 2^216108893700 is an apocalyptic number.

216108893700 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 216108893700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417895475200).

216108893700 is an abundant number, since it is smaller than the sum of its proper divisors (619682056700).

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

216108893700 is a wasteful number, since it uses less digits than its factorization.

216108893700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601856 (or 601843 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 216108893700 in words is "two hundred sixteen billion, one hundred eight million, eight hundred ninety-three thousand, seven hundred".