216242403600 has 60 divisors (see below), whose sum is σ = 692696503376. Its totient is φ = 57664640640.

The previous prime is 216242403589. The next prime is 216242403607. The reversal of 216242403600 is 6304242612.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×216242403600² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (216242403607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90099802 + ... + 90102201.

Almost surely, 2^216242403600 is an apocalyptic number.

216242403600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216242403600 is an abundant number, since it is smaller than the sum of its proper divisors (476454099776).

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

216242403600 is a wasteful number, since it uses less digits than its factorization.

216242403600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180202024 (or 180202013 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 216242403600 in words is "two hundred sixteen billion, two hundred forty-two million, four hundred three thousand, six hundred".