11744720555 has 8 divisors (see below), whose sum is σ = 14922703872. Its totient is φ = 8843083648.

The previous prime is 11744720551. The next prime is 11744720557. The reversal of 11744720555 is 55502744711.

11744720555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11744720555 - 2² = 11744720551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11744720551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69086507 + ... + 69086676.

It is an arithmetic number, because the mean of its divisors is an integer number (1865337984).

Almost surely, 2^11744720555 is an apocalyptic number.

11744720555 is a deficient number, since it is larger than the sum of its proper divisors (3177983317).

11744720555 is a wasteful number, since it uses less digits than its factorization.

11744720555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138173205.

The product of its (nonzero) digits is 196000, while the sum is 41.

The spelling of 11744720555 in words is "eleven billion, seven hundred forty-four million, seven hundred twenty thousand, five hundred fifty-five".