216211486 has 8 divisors (see below), whose sum is σ = 330436584. Its totient is φ = 106065960.

The previous prime is 216211483. The next prime is 216211529. The reversal of 216211486 is 684112612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216211483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019760 + ... + 1019971.

It is an arithmetic number, because the mean of its divisors is an integer number (41304573).

Almost surely, 2^216211486 is an apocalyptic number.

216211486 is a deficient number, since it is larger than the sum of its proper divisors (114225098).

216211486 is a wasteful number, since it uses less digits than its factorization.

216211486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039786.

The product of its digits is 4608, while the sum is 31.

The square root of 216211486 is about 14704.1315962555. The cubic root of 216211486 is about 600.1957564957.

The spelling of 216211486 in words is "two hundred sixteen million, two hundred eleven thousand, four hundred eighty-six".