11155261254 has 48 divisors (see below), whose sum is σ = 22898104752. Its totient is φ = 3622316544.

The previous prime is 11155261241. The next prime is 11155261261. The reversal of 11155261254 is 45216255111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3015534 + ... + 3019230.

It is an arithmetic number, because the mean of its divisors is an integer number (477043849).

Almost surely, 2^11155261254 is an apocalyptic number.

11155261254 is an abundant number, since it is smaller than the sum of its proper divisors (11742843498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11155261254 is an equidigital number, since it uses as much as digits as its factorization.

11155261254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941 (or 3858 counting only the distinct ones).

The product of its digits is 12000, while the sum is 33.

The spelling of 11155261254 in words is "eleven billion, one hundred fifty-five million, two hundred sixty-one thousand, two hundred fifty-four".