216462245533 has 2 divisors, whose sum is σ = 216462245534. Its totient is φ = 216462245532.

The previous prime is 216462245513. The next prime is 216462245581. The reversal of 216462245533 is 335542264612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139784758884 + 76677486649 = 373878^2 + 276907^2 .

It is a cyclic number.

It is not a de Polignac number, because 216462245533 - 2⁵ = 216462245501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216462245533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216462245513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108231122766 + 108231122767.

It is an arithmetic number, because the mean of its divisors is an integer number (108231122767).

Almost surely, 2^216462245533 is an apocalyptic number.

It is an amenable number.

216462245533 is a deficient number, since it is larger than the sum of its proper divisors (1).

216462245533 is an equidigital number, since it uses as much as digits as its factorization.

216462245533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 43.

The spelling of 216462245533 in words is "two hundred sixteen billion, four hundred sixty-two million, two hundred forty-five thousand, five hundred thirty-three".