6216505461 has 12 divisors (see below), whose sum is σ = 9311967392. Its totient is φ = 4144336812.

The previous prime is 6216505433. The next prime is 6216505487. The reversal of 6216505461 is 1645056126.

6216505461 is a `hidden beast` number, since 62 + 1 + 6 + 50 + 546 + 1 = 666.

It is not a de Polignac number, because 6216505461 - 2⁵ = 6216505429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6216505411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12790921 + ... + 12791406.

Almost surely, 2^6216505461 is an apocalyptic number.

It is an amenable number.

6216505461 is a deficient number, since it is larger than the sum of its proper divisors (3095461931).

6216505461 is an equidigital number, since it uses as much as digits as its factorization.

6216505461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25582342 (or 25582330 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 6216505461 is about 78844.8188595801. The cubic root of 6216505461 is about 1838.7193219861.

The spelling of 6216505461 in words is "six billion, two hundred sixteen million, five hundred five thousand, four hundred sixty-one".