216231662 has 16 divisors (see below), whose sum is σ = 327344112. Its totient is φ = 107121600.

The previous prime is 216231661. The next prime is 216231677. The reversal of 216231662 is 266132612.

It is a super-2 number, since 2×216231662² = 93512263302564488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216231661) 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, 119162 + ... + 120962.

It is an arithmetic number, because the mean of its divisors is an integer number (20459007).

Almost surely, 2^216231662 is an apocalyptic number.

216231662 is a deficient number, since it is larger than the sum of its proper divisors (111112450).

216231662 is a wasteful number, since it uses less digits than its factorization.

216231662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

The product of its digits is 5184, while the sum is 29.

The square root of 216231662 is about 14704.8176459282. The cubic root of 216231662 is about 600.2144252124.

The spelling of 216231662 in words is "two hundred sixteen million, two hundred thirty-one thousand, six hundred sixty-two".