216126567 has 12 divisors (see below), whose sum is σ = 315275064. Its totient is φ = 142657200.

The previous prime is 216126563. The next prime is 216126613. The reversal of 216126567 is 765621612.

It is a happy number.

It is not a de Polignac number, because 216126567 - 2² = 216126563 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216126563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117973 + ... + 119790.

It is an arithmetic number, because the mean of its divisors is an integer number (26272922).

Almost surely, 2^216126567 is an apocalyptic number.

216126567 is a deficient number, since it is larger than the sum of its proper divisors (99148497).

216126567 is a wasteful number, since it uses less digits than its factorization.

216126567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237870 (or 237867 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 216126567 is about 14701.2437228964. The cubic root of 216126567 is about 600.1171687843.

The spelling of 216126567 in words is "two hundred sixteen million, one hundred twenty-six thousand, five hundred sixty-seven".