11155335061 has 8 divisors (see below), whose sum is σ = 12060186264. Its totient is φ = 10257162240.

The previous prime is 11155335053. The next prime is 11155335073. The reversal of 11155335061 is 16053355111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2511914161 + 8643420900 = 50119^2 + 92970^2 .

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

It is not a de Polignac number, because 11155335061 - 2³ = 11155335053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155335001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666120 + ... + 1672801.

It is an arithmetic number, because the mean of its divisors is an integer number (1507523283).

Almost surely, 2^11155335061 is an apocalyptic number.

It is an amenable number.

11155335061 is a deficient number, since it is larger than the sum of its proper divisors (904851203).

11155335061 is a wasteful number, since it uses less digits than its factorization.

11155335061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339191.

The product of its (nonzero) digits is 6750, while the sum is 31.

The spelling of 11155335061 in words is "eleven billion, one hundred fifty-five million, three hundred thirty-five thousand, sixty-one".