6581314650 has 24 divisors (see below), whose sum is σ = 16321660704. Its totient is φ = 1755017200.

The previous prime is 6581314643. The next prime is 6581314651. The reversal of 6581314650 is 564131856.

It is a junction number, because it is equal to n+sod(n) for n = 6581314599 and 6581314608.

It is not an unprimeable number, because it can be changed into a prime (6581314651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21937566 + ... + 21937865.

It is an arithmetic number, because the mean of its divisors is an integer number (680069196).

Almost surely, 2^6581314650 is an apocalyptic number.

6581314650 is an abundant number, since it is smaller than the sum of its proper divisors (9740346054).

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

6581314650 is a wasteful number, since it uses less digits than its factorization.

6581314650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43875446 (or 43875441 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 6581314650 is about 81125.3021566022. The cubic root of 6581314650 is about 1874.0056024969.

The spelling of 6581314650 in words is "six billion, five hundred eighty-one million, three hundred fourteen thousand, six hundred fifty".