216241455 has 16 divisors (see below), whose sum is σ = 346491360. Its totient is φ = 115160448.

The previous prime is 216241427. The next prime is 216241463. The reversal of 216241455 is 554142612.

It is not a de Polignac number, because 216241455 - 2⁶ = 216241391 is a prime.

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, 469 + ... + 20801.

It is an arithmetic number, because the mean of its divisors is an integer number (21655710).

Almost surely, 2^216241455 is an apocalyptic number.

216241455 is a deficient number, since it is larger than the sum of its proper divisors (130249905).

216241455 is a wasteful number, since it uses less digits than its factorization.

216241455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21050.

The product of its digits is 9600, while the sum is 30.

The square root of 216241455 is about 14705.1506282663. The cubic root of 216241455 is about 600.2234861906.

The spelling of 216241455 in words is "two hundred sixteen million, two hundred forty-one thousand, four hundred fifty-five".