216737608000 has 56 divisors (see below), whose sum is σ = 536750706024. Its totient is φ = 86695040000.

The previous prime is 216737607997. The next prime is 216737608081. The reversal of 216737608000 is 806737612.

216737608000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 69975062784 + 146762545216 = 264528^2 + 383096^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13538101 + ... + 13554100.

Almost surely, 2^216737608000 is an apocalyptic number.

216737608000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216737608000 is an abundant number, since it is smaller than the sum of its proper divisors (320013098024).

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

216737608000 is an equidigital number, since it uses as much as digits as its factorization.

216737608000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27092228 (or 27092208 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 216737608000 in words is "two hundred sixteen billion, seven hundred thirty-seven million, six hundred eight thousand".