216203416865384 has 16 divisors (see below), whose sum is σ = 436564591747620. Its totient is φ = 99786192399360.

The previous prime is 216203416865377. The next prime is 216203416865399. The reversal of 216203416865384 is 483568614302612.

It can be written as a sum of positive squares in 2 ways, for example, as 213520772522500 + 2682644342884 = 14612350^2 + 1637878^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039439504057 + ... + 1039439504264.

Almost surely, 2^{216203416865384} is an apocalyptic number.

It is an amenable number.

216203416865384 is an abundant number, since it is smaller than the sum of its proper divisors (220361174882236).

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

216203416865384 is a wasteful number, since it uses less digits than its factorization.

216203416865384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078879008340 (or 2078879008336 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 59.

The spelling of 216203416865384 in words is "two hundred sixteen trillion, two hundred three billion, four hundred sixteen million, eight hundred sixty-five thousand, three hundred eighty-four".