11155428886 has 24 divisors (see below), whose sum is σ = 19991174976. Its totient is φ = 4651683120.

The previous prime is 11155428877. The next prime is 11155428887. The reversal of 11155428886 is 68882455111.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155428887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1534630 + ... + 1541881.

It is an arithmetic number, because the mean of its divisors is an integer number (832965624).

Almost surely, 2^11155428886 is an apocalyptic number.

11155428886 is a deficient number, since it is larger than the sum of its proper divisors (8835746090).

11155428886 is a wasteful number, since it uses less digits than its factorization.

11155428886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076564 (or 3076557 counting only the distinct ones).

The product of its digits is 614400, while the sum is 49.

The spelling of 11155428886 in words is "eleven billion, one hundred fifty-five million, four hundred twenty-eight thousand, eight hundred eighty-six".