6581733081 has 32 divisors (see below), whose sum is σ = 10970539008. Its totient is φ = 3409871040.

The previous prime is 6581733017. The next prime is 6581733131. The reversal of 6581733081 is 1803371856.

It is not a de Polignac number, because 6581733081 - 2⁶ = 6581733017 is a prime.

It is a super-2 number, since 2×6581733081² = 86638420699059505122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6581733281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47970 + ... + 124356.

It is an arithmetic number, because the mean of its divisors is an integer number (342829344).

Almost surely, 2^6581733081 is an apocalyptic number.

It is an amenable number.

6581733081 is a deficient number, since it is larger than the sum of its proper divisors (4388805927).

6581733081 is a wasteful number, since it uses less digits than its factorization.

6581733081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76781.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 6581733081 is about 81127.8810335880. The cubic root of 6581733081 is about 1874.0453172278.

The spelling of 6581733081 in words is "six billion, five hundred eighty-one million, seven hundred thirty-three thousand, eighty-one".