216391033632300 has 144 divisors (see below), whose sum is σ = 654958387813632. Its totient is φ = 55056362169600.

The previous prime is 216391033632281. The next prime is 216391033632311. The reversal of 216391033632300 is 3236330193612.

It is a happy number.

216391033632300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 36758206 + ... + 42236805.

Almost surely, 2^{216391033632300} is an apocalyptic number.

216391033632300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216391033632300 is an abundant number, since it is smaller than the sum of its proper divisors (438567354181332).

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

216391033632300 is a wasteful number, since it uses less digits than its factorization.

216391033632300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78995448 (or 78995441 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 42.

The spelling of 216391033632300 in words is "two hundred sixteen trillion, three hundred ninety-one billion, thirty-three million, six hundred thirty-two thousand, three hundred".