11544162261 has 16 divisors (see below), whose sum is σ = 15932080128. Its totient is φ = 7427530800.

The previous prime is 11544162241. The next prime is 11544162263. The reversal of 11544162261 is 16226144511.

It is a de Polignac number, because none of the positive numbers 2^k-11544162261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11544162263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134985 + ... + 203246.

It is an arithmetic number, because the mean of its divisors is an integer number (995755008).

Almost surely, 2^11544162261 is an apocalyptic number.

It is an amenable number.

11544162261 is a deficient number, since it is larger than the sum of its proper divisors (4387917867).

11544162261 is a wasteful number, since it uses less digits than its factorization.

11544162261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338632.

The product of its digits is 11520, while the sum is 33.

The spelling of 11544162261 in words is "eleven billion, five hundred forty-four million, one hundred sixty-two thousand, two hundred sixty-one".