216205744400375 has 16 divisors (see below), whose sum is σ = 278528793823488. Its totient is φ = 167385092436000.

The previous prime is 216205744400369. The next prime is 216205744400389. The reversal of 216205744400375 is 573004447502612.

It is not a de Polignac number, because 216205744400375 - 2¹⁸ = 216205744138231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27897511532 + ... + 27897519281.

It is an arithmetic number, because the mean of its divisors is an integer number (17408049613968).

Almost surely, 2^{216205744400375} is an apocalyptic number.

216205744400375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

216205744400375 is a deficient number, since it is larger than the sum of its proper divisors (62323049423113).

216205744400375 is an equidigital number, since it uses as much as digits as its factorization.

216205744400375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55795030859 (or 55795030849 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 50.

The spelling of 216205744400375 in words is "two hundred sixteen trillion, two hundred five billion, seven hundred forty-four million, four hundred thousand, three hundred seventy-five".