6293440161 has 6 divisors (see below), whose sum is σ = 9090524690. Its totient is φ = 4195626768.

The previous prime is 6293440123. The next prime is 6293440163. The reversal of 6293440161 is 1610443926.

It can be written as a sum of positive squares in only one way, i.e., 3239772561 + 3053667600 = 56919^2 + 55260^2 .

It is not a de Polignac number, because 6293440161 - 2¹⁰ = 6293439137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6293440163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349635556 + ... + 349635573.

Almost surely, 2^6293440161 is an apocalyptic number.

It is an amenable number.

6293440161 is a deficient number, since it is larger than the sum of its proper divisors (2797084529).

6293440161 is a wasteful number, since it uses less digits than its factorization.

6293440161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699271135 (or 699271132 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6293440161 is about 79331.2054679620. The cubic root of 6293440161 is about 1846.2734980195.

The spelling of 6293440161 in words is "six billion, two hundred ninety-three million, four hundred forty thousand, one hundred sixty-one".