216363556 has 24 divisors (see below), whose sum is σ = 402071040. Its totient is φ = 101523072.

The previous prime is 216363547. The next prime is 216363557. The reversal of 216363556 is 655363612.

It is not an unprimeable number, because it can be changed into a prime (216363557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19981 + ... + 28843.

It is an arithmetic number, because the mean of its divisors is an integer number (16752960).

Almost surely, 2^216363556 is an apocalyptic number.

It is an amenable number.

216363556 is a deficient number, since it is larger than the sum of its proper divisors (185707484).

216363556 is a wasteful number, since it uses less digits than its factorization.

216363556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9243 (or 9241 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The square root of 216363556 is about 14709.3016829488. The cubic root of 216363556 is about 600.3364372406.

The spelling of 216363556 in words is "two hundred sixteen million, three hundred sixty-three thousand, five hundred fifty-six".