216262361 has 8 divisors (see below), whose sum is σ = 247574400. Its totient is φ = 185054688.

The previous prime is 216262357. The next prime is 216262363. The reversal of 216262361 is 163262612.

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

It is not a de Polignac number, because 216262361 - 2² = 216262357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216262363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21596 + ... + 29981.

It is an arithmetic number, because the mean of its divisors is an integer number (30946800).

Almost surely, 2^216262361 is an apocalyptic number.

It is an amenable number.

216262361 is a deficient number, since it is larger than the sum of its proper divisors (31312039).

216262361 is an equidigital number, since it uses as much as digits as its factorization.

216262361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52183.

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

The square root of 216262361 is about 14705.8614504557. The cubic root of 216262361 is about 600.2428285624.

The spelling of 216262361 in words is "two hundred sixteen million, two hundred sixty-two thousand, three hundred sixty-one".