216887663160 has 144 divisors (see below), whose sum is σ = 819968221800. Its totient is φ = 49574318976.

The previous prime is 216887663147. The next prime is 216887663191. The reversal of 216887663160 is 61366788612.

216887663160 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 216887663097 and 216887663106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6129970 + ... + 6165249.

Almost surely, 2^216887663160 is an apocalyptic number.

216887663160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216887663160 is an abundant number, since it is smaller than the sum of its proper divisors (603080558640).

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

216887663160 is a wasteful number, since it uses less digits than its factorization.

216887663160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295250 (or 12295236 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

It can be divided in two parts, 2168876 and 63160, that added together give a square (2232036 = 1494²).

The spelling of 216887663160 in words is "two hundred sixteen billion, eight hundred eighty-seven million, six hundred sixty-three thousand, one hundred sixty".