6221594961 has 16 divisors (see below), whose sum is σ = 9234889920. Its totient is φ = 4139759520.

The previous prime is 6221594947. The next prime is 6221594969. The reversal of 6221594961 is 1694951226.

6221594961 is a `hidden beast` number, since 6 + 2 + 2 + 159 + 496 + 1 = 666.

It is not a de Polignac number, because 6221594961 - 2¹¹ = 6221592913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6221594969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207075 + ... + 235208.

It is an arithmetic number, because the mean of its divisors is an integer number (577180620).

Almost surely, 2^6221594961 is an apocalyptic number.

It is an amenable number.

6221594961 is a deficient number, since it is larger than the sum of its proper divisors (3013294959).

6221594961 is a wasteful number, since it uses less digits than its factorization.

6221594961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442813 (or 442807 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 6221594961 is about 78877.0876807708. The cubic root of 6221594961 is about 1839.2209762431.

The spelling of 6221594961 in words is "six billion, two hundred twenty-one million, five hundred ninety-four thousand, nine hundred sixty-one".