216753356 has 6 divisors (see below), whose sum is σ = 379318380. Its totient is φ = 108376676.

The previous prime is 216753307. The next prime is 216753377. The reversal of 216753356 is 653357612.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27094166 + ... + 27094173.

It is an arithmetic number, because the mean of its divisors is an integer number (63219730).

Almost surely, 2^216753356 is an apocalyptic number.

It is an amenable number.

216753356 is a deficient number, since it is larger than the sum of its proper divisors (162565024).

216753356 is a wasteful number, since it uses less digits than its factorization.

216753356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54188343 (or 54188341 counting only the distinct ones).

The product of its digits is 113400, while the sum is 38.

The square root of 216753356 is about 14722.5458396298. The cubic root of 216753356 is about 600.6967424553.

The spelling of 216753356 in words is "two hundred sixteen million, seven hundred fifty-three thousand, three hundred fifty-six".