216401460017 has 2 divisors, whose sum is σ = 216401460018. Its totient is φ = 216401460016.

The previous prime is 216401459987. The next prime is 216401460049. The reversal of 216401460017 is 710064104612.

It is an a-pointer prime, because the next prime (216401460049) can be obtained adding 216401460017 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169516652176 + 46884807841 = 411724^2 + 216529^2 .

It is a cyclic number.

It is not a de Polignac number, because 216401460017 - 2²⁸ = 216133024561 is a prime.

It is not a weakly prime, because it can be changed into another prime (216401460217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108200730008 + 108200730009.

It is an arithmetic number, because the mean of its divisors is an integer number (108200730009).

Almost surely, 2^216401460017 is an apocalyptic number.

It is an amenable number.

216401460017 is a deficient number, since it is larger than the sum of its proper divisors (1).

216401460017 is an equidigital number, since it uses as much as digits as its factorization.

216401460017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

Adding to 216401460017 its reverse (710064104612), we get a palindrome (926465564629).

The spelling of 216401460017 in words is "two hundred sixteen billion, four hundred one million, four hundred sixty thousand, seventeen".