5681081056 has 24 divisors (see below), whose sum is σ = 12782432880. Its totient is φ = 2434748928.

The previous prime is 5681081041. The next prime is 5681081069. The reversal of 5681081056 is 6501801865.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12680761 + ... + 12681208.

It is an arithmetic number, because the mean of its divisors is an integer number (532601370).

Almost surely, 2^5681081056 is an apocalyptic number.

5681081056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5681081056 is an abundant number, since it is smaller than the sum of its proper divisors (7101351824).

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

5681081056 is a wasteful number, since it uses less digits than its factorization.

5681081056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25361986 (or 25361978 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 5681081056 is about 75372.9464463212. The cubic root of 5681081056 is about 1784.3374689198.

The spelling of 5681081056 in words is "five billion, six hundred eighty-one million, eighty-one thousand, fifty-six".