10581448261 has 8 divisors (see below), whose sum is σ = 11205739800. Its totient is φ = 9957362688.

The previous prime is 10581448217. The next prime is 10581448277. The reversal of 10581448261 is 16284418501.

It can be written as a sum of positive squares in 4 ways, for example, as 6106641025 + 4474807236 = 78145^2 + 66894^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10581448261 - 2⁷ = 10581448133 is a prime.

It is a super-2 number, since 2×10581448261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10581448561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61375 + ... + 157891.

It is an arithmetic number, because the mean of its divisors is an integer number (1400717475).

Almost surely, 2^10581448261 is an apocalyptic number.

It is an amenable number.

10581448261 is a deficient number, since it is larger than the sum of its proper divisors (624291539).

10581448261 is an equidigital number, since it uses as much as digits as its factorization.

10581448261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102983.

The product of its (nonzero) digits is 61440, while the sum is 40.

The spelling of 10581448261 in words is "ten billion, five hundred eighty-one million, four hundred forty-eight thousand, two hundred sixty-one".