6271649616 has 20 divisors (see below), whose sum is σ = 16201761632. Its totient is φ = 2090549856.

The previous prime is 6271649609. The next prime is 6271649617. The reversal of 6271649616 is 6169461726.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 130659367 = 6271649616 / (6 + 2 + 7 + 1 + 6 + 4 + 9 + 6 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6271649617) 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 3 ways as a sum of consecutive naturals, for example, 65329636 + ... + 65329731.

Almost surely, 2^6271649616 is an apocalyptic number.

It is an amenable number.

6271649616 is an abundant number, since it is smaller than the sum of its proper divisors (9930112016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6271649616 is a wasteful number, since it uses less digits than its factorization.

6271649616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130659378 (or 130659372 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 6271649616 is about 79193.7473289401. The cubic root of 6271649616 is about 1844.1401747062.

The spelling of 6271649616 in words is "six billion, two hundred seventy-one million, six hundred forty-nine thousand, six hundred sixteen".