216485614375 has 20 divisors (see below), whose sum is σ = 271195352208. Its totient is φ = 172756400000.

The previous prime is 216485614369. The next prime is 216485614381. The reversal of 216485614375 is 573416584612.

216485614375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216485614369) and next prime (216485614381).

It is not a de Polignac number, because 216485614375 - 2¹⁷ = 216485483303 is a prime.

It is a Duffinian number.

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 19 ways as a sum of consecutive naturals, for example, 181267 + ... + 682516.

Almost surely, 2^216485614375 is an apocalyptic number.

216485614375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

216485614375 is a deficient number, since it is larger than the sum of its proper divisors (54709737833).

216485614375 is an frugal number, since it uses more digits than its factorization.

216485614375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864204 (or 864189 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The spelling of 216485614375 in words is "two hundred sixteen billion, four hundred eighty-five million, six hundred fourteen thousand, three hundred seventy-five".