10994445581 has 8 divisors (see below), whose sum is σ = 13304203200. Its totient is φ = 8869468608.

The previous prime is 10994445571. The next prime is 10994445599. The reversal of 10994445581 is 18554449901.

It is a happy number.

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

It is not a de Polignac number, because 10994445581 - 2¹⁰ = 10994444557 is a prime.

It is a super-2 number, since 2×10994445581² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10994445541) 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, 46195031 + ... + 46195268.

It is an arithmetic number, because the mean of its divisors is an integer number (1663025400).

Almost surely, 2^10994445581 is an apocalyptic number.

It is an amenable number.

10994445581 is a deficient number, since it is larger than the sum of its proper divisors (2309757619).

10994445581 is an equidigital number, since it uses as much as digits as its factorization.

10994445581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92390323.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 10994445581 in words is "ten billion, nine hundred ninety-four million, four hundred forty-five thousand, five hundred eighty-one".