11120645440661 has 4 divisors (see below), whose sum is σ = 11604151764192. Its totient is φ = 10637139117132.

The previous prime is 11120645440651. The next prime is 11120645440687. The reversal of 11120645440661 is 16604454602111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11120645440661 is a prime.

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 (11120645440651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241753161731 + ... + 241753161776.

It is an arithmetic number, because the mean of its divisors is an integer number (2901037941048).

Almost surely, 2^{11120645440661} is an apocalyptic number.

It is an amenable number.

11120645440661 is a deficient number, since it is larger than the sum of its proper divisors (483506323531).

11120645440661 is an equidigital number, since it uses as much as digits as its factorization.

11120645440661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483506323530.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 11120645440661 in words is "eleven trillion, one hundred twenty billion, six hundred forty-five million, four hundred forty thousand, six hundred sixty-one".