6481611056 has 20 divisors (see below), whose sum is σ = 13219075800. Its totient is φ = 3070236672.

The previous prime is 6481611053. The next prime is 6481611077. The reversal of 6481611056 is 6501161846.

It is a super-2 number, since 2×6481611056² = 84022563762522870272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (6481611053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10660241 + ... + 10660848.

It is an arithmetic number, because the mean of its divisors is an integer number (660953790).

Almost surely, 2^6481611056 is an apocalyptic number.

It is an amenable number.

6481611056 is an abundant number, since it is smaller than the sum of its proper divisors (6737464744).

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

6481611056 is a wasteful number, since it uses less digits than its factorization.

6481611056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21321116 (or 21321110 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 6481611056 is about 80508.4533201328. The cubic root of 6481611056 is about 1864.4939946455.

The spelling of 6481611056 in words is "six billion, four hundred eighty-one million, six hundred eleven thousand, fifty-six".