11001000155 has 8 divisors (see below), whose sum is σ = 13202672112. Its totient is φ = 8799818848.

The previous prime is 11001000149. The next prime is 11001000191. The reversal of 11001000155 is 55100010011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11001000155 - 2¹⁴ = 11000983771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71384 + ... + 164613.

It is an arithmetic number, because the mean of its divisors is an integer number (1650334014).

Almost surely, 2^11001000155 is an apocalyptic number.

11001000155 is a deficient number, since it is larger than the sum of its proper divisors (2201671957).

11001000155 is an equidigital number, since it uses as much as digits as its factorization.

11001000155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245325.

The product of its (nonzero) digits is 25, while the sum is 14.

Adding to 11001000155 its reverse (55100010011), we get a palindrome (66101010166).

The spelling of 11001000155 in words is "eleven billion, one million, one hundred fifty-five", and thus it is an aban number.