11144540655 has 64 divisors (see below), whose sum is σ = 21117542400. Its totient is φ = 5556902400.

The previous prime is 11144540651. The next prime is 11144540663. The reversal of 11144540655 is 55604544111.

11144540655 is a `hidden beast` number, since 1 + 11 + 44 + 540 + 65 + 5 = 666.

It is not a de Polignac number, because 11144540655 - 2² = 11144540651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144540651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 330466 + ... + 362624.

It is an arithmetic number, because the mean of its divisors is an integer number (329961600).

Almost surely, 2^11144540655 is an apocalyptic number.

11144540655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11144540655 is a deficient number, since it is larger than the sum of its proper divisors (9973001745).

11144540655 is a wasteful number, since it uses less digits than its factorization.

11144540655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32341 (or 32335 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

It can be divided in two parts, 111445 and 40655, that added together give a square (152100 = 390²).

The spelling of 11144540655 in words is "eleven billion, one hundred forty-four million, five hundred forty thousand, six hundred fifty-five".