11444555554 has 32 divisors (see below), whose sum is σ = 17854027776. Its totient is φ = 5498256720.

The previous prime is 11444555543. The next prime is 11444555561. The reversal of 11444555554 is 45555544411.

It is a self number, because there is not a number n which added to its sum of digits gives 11444555554.

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, 1955757 + ... + 1961599.

It is an arithmetic number, because the mean of its divisors is an integer number (557938368).

Almost surely, 2^11444555554 is an apocalyptic number.

11444555554 is a deficient number, since it is larger than the sum of its proper divisors (6409472222).

11444555554 is a wasteful number, since it uses less digits than its factorization.

11444555554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6270.

The product of its digits is 800000, while the sum is 43.

The spelling of 11444555554 in words is "eleven billion, four hundred forty-four million, five hundred fifty-five thousand, five hundred fifty-four".