216536411 has 8 divisors (see below), whose sum is σ = 266506464. Its totient is φ = 171325440.

The previous prime is 216536389. The next prime is 216536413. The reversal of 216536411 is 114635612.

It is a happy number.

216536411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216536411 - 2¹⁰ = 216535387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216536413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189670 + ... + 1189851.

It is an arithmetic number, because the mean of its divisors is an integer number (33313308).

Almost surely, 2^216536411 is an apocalyptic number.

216536411 is a deficient number, since it is larger than the sum of its proper divisors (49970053).

216536411 is a wasteful number, since it uses less digits than its factorization.

216536411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379541.

The product of its digits is 4320, while the sum is 29.

The square root of 216536411 is about 14715.1762136918. The cubic root of 216536411 is about 600.4962662717.

The spelling of 216536411 in words is "two hundred sixteen million, five hundred thirty-six thousand, four hundred eleven".