11121461645555 has 16 divisors (see below), whose sum is σ = 13356750667104. Its totient is φ = 8889838878720.

The previous prime is 11121461645537. The next prime is 11121461645561. The reversal of 11121461645555 is 55554616412111.

11121461645555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11121461645555 - 2³⁰ = 11120387903731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215035379 + ... + 215087091.

It is an arithmetic number, because the mean of its divisors is an integer number (834796916694).

Almost surely, 2^{11121461645555} is an apocalyptic number.

11121461645555 is a deficient number, since it is larger than the sum of its proper divisors (2235289021549).

11121461645555 is a wasteful number, since it uses less digits than its factorization.

11121461645555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86326.

The product of its digits is 720000, while the sum is 47.

The spelling of 11121461645555 in words is "eleven trillion, one hundred twenty-one billion, four hundred sixty-one million, six hundred forty-five thousand, five hundred fifty-five".