216432411 has 16 divisors (see below), whose sum is σ = 311351040. Its totient is φ = 132942240.

The previous prime is 216432409. The next prime is 216432413. The reversal of 216432411 is 114234612.

It is an interprime number because it is at equal distance from previous prime (216432409) and next prime (216432413).

It is not a de Polignac number, because 216432411 - 2¹ = 216432409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216432413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17410 + ... + 27128.

It is an arithmetic number, because the mean of its divisors is an integer number (19459440).

Almost surely, 2^216432411 is an apocalyptic number.

216432411 is a deficient number, since it is larger than the sum of its proper divisors (94918629).

216432411 is a wasteful number, since it uses less digits than its factorization.

216432411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10306.

The product of its digits is 1152, while the sum is 24.

The square root of 216432411 is about 14711.6420225616. The cubic root of 216432411 is about 600.4001136780.

The spelling of 216432411 in words is "two hundred sixteen million, four hundred thirty-two thousand, four hundred eleven".