216401460071 has 2 divisors, whose sum is σ = 216401460072. Its totient is φ = 216401460070.

The previous prime is 216401460049. The next prime is 216401460109. The reversal of 216401460071 is 170064104612.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216401460071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216401460371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108200730035 + 108200730036.

It is an arithmetic number, because the mean of its divisors is an integer number (108200730036).

Almost surely, 2^216401460071 is an apocalyptic number.

216401460071 is a deficient number, since it is larger than the sum of its proper divisors (1).

216401460071 is an equidigital number, since it uses as much as digits as its factorization.

216401460071 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 216401460071 its reverse (170064104612), we get a palindrome (386465564683).

The spelling of 216401460071 in words is "two hundred sixteen billion, four hundred one million, four hundred sixty thousand, seventy-one".