216380616441 has 32 divisors (see below), whose sum is σ = 324614670336. Its totient is φ = 127078680000.

The previous prime is 216380616427. The next prime is 216380616467. The reversal of 216380616441 is 144616083612.

216380616441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216380616441 - 2¹⁷ = 216380485369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216380616393 and 216380616402.

It is not an unprimeable number, because it can be changed into a prime (216380616421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 533995 + ... + 847296.

It is an arithmetic number, because the mean of its divisors is an integer number (10144208448).

Almost surely, 2^216380616441 is an apocalyptic number.

It is an amenable number.

216380616441 is a deficient number, since it is larger than the sum of its proper divisors (108234053895).

216380616441 is a wasteful number, since it uses less digits than its factorization.

216380616441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381453.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 216380616441 in words is "two hundred sixteen billion, three hundred eighty million, six hundred sixteen thousand, four hundred forty-one".