265601216 has 14 divisors (see below), whose sum is σ = 527052540. Its totient is φ = 132800576.

The previous prime is 265601201. The next prime is 265601243. The reversal of 265601216 is 612106562.

265601216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2074946 + ... + 2075073.

It is an arithmetic number, because the mean of its divisors is an integer number (37646610).

Almost surely, 2^265601216 is an apocalyptic number.

It is an amenable number.

265601216 is a deficient number, since it is larger than the sum of its proper divisors (261451324).

265601216 is an equidigital number, since it uses as much as digits as its factorization.

265601216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150031 (or 4150021 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 265601216 is about 16297.2763368607. The cubic root of 265601216 is about 642.8012110962.

Adding to 265601216 its reverse (612106562), we get a palindrome (877707778).

The spelling of 265601216 in words is "two hundred sixty-five million, six hundred one thousand, two hundred sixteen".