6581137248 has 120 divisors (see below), whose sum is σ = 22119994512. Its totient is φ = 1880319744.

The previous prime is 6581137247. The next prime is 6581137279. The reversal of 6581137248 is 8427311856.

It is a super-2 number, since 2×6581137248² = 86622734954026027008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6581137247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 163215 + ... + 199502.

Almost surely, 2^6581137248 is an apocalyptic number.

It is an amenable number.

6581137248 is an abundant number, since it is smaller than the sum of its proper divisors (15538857264).

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

6581137248 is a wasteful number, since it uses less digits than its factorization.

6581137248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362746 (or 362729 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 6581137248 is about 81124.2087665575. The cubic root of 6581137248 is about 1873.9887641525.

The spelling of 6581137248 in words is "six billion, five hundred eighty-one million, one hundred thirty-seven thousand, two hundred forty-eight".