11061644641 has 8 divisors (see below), whose sum is σ = 11202871680. Its totient is φ = 10920607152.

The previous prime is 11061644639. The next prime is 11061644647. The reversal of 11061644641 is 14644616011.

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 11061644641 - 2¹ = 11061644639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11061644597 and 11061644606.

It is not an unprimeable number, because it can be changed into a prime (11061644647) 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, 71976 + ... + 165238.

It is an arithmetic number, because the mean of its divisors is an integer number (1400358960).

Almost surely, 2^11061644641 is an apocalyptic number.

It is an amenable number.

11061644641 is a deficient number, since it is larger than the sum of its proper divisors (141227039).

11061644641 is an equidigital number, since it uses as much as digits as its factorization.

11061644641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94775.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 11061644641 in words is "eleven billion, sixty-one million, six hundred forty-four thousand, six hundred forty-one".