11255532155 has 8 divisors (see below), whose sum is σ = 15436158432. Its totient is φ = 7718079168.

The previous prime is 11255532121. The next prime is 11255532161. The reversal of 11255532155 is 55123555211.

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 11255532155 - 2⁸ = 11255531899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 321586633 = 11255532155 / (1 + 1 + 2 + 5 + 5 + 5 + 3 + 2 + 1 + 5 + 5).

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, 160793282 + ... + 160793351.

It is an arithmetic number, because the mean of its divisors is an integer number (1929519804).

Almost surely, 2^11255532155 is an apocalyptic number.

11255532155 is a deficient number, since it is larger than the sum of its proper divisors (4180626277).

11255532155 is an equidigital number, since it uses as much as digits as its factorization.

11255532155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321586645.

The product of its digits is 37500, while the sum is 35.

The spelling of 11255532155 in words is "eleven billion, two hundred fifty-five million, five hundred thirty-two thousand, one hundred fifty-five".