11166226231355 has 16 divisors (see below), whose sum is σ = 14432413482144. Its totient is φ = 8244563784960.

The previous prime is 11166226231343. The next prime is 11166226231409. The reversal of 11166226231355 is 55313262266111.

It is a happy number.

It is not a de Polignac number, because 11166226231355 - 2¹² = 11166226227259 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, 12748049 + ... + 13595778.

It is an arithmetic number, because the mean of its divisors is an integer number (902025842634).

Almost surely, 2^{11166226231355} is an apocalyptic number.

11166226231355 is a deficient number, since it is larger than the sum of its proper divisors (3266187250789).

11166226231355 is a wasteful number, since it uses less digits than its factorization.

11166226231355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26350366.

The product of its digits is 388800, while the sum is 44.

Adding to 11166226231355 its reverse (55313262266111), we get a palindrome (66479488497466).

The spelling of 11166226231355 in words is "eleven trillion, one hundred sixty-six billion, two hundred twenty-six million, two hundred thirty-one thousand, three hundred fifty-five".