11015540042 has 8 divisors (see below), whose sum is σ = 17794333956. Its totient is φ = 5084095392.

The previous prime is 11015540033. The next prime is 11015540077. The reversal of 11015540042 is 24004551011.

It can be written as a sum of positive squares in 2 ways, for example, as 8460136441 + 2555403601 = 91979^2 + 50551^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211837283 + ... + 211837334.

Almost surely, 2^11015540042 is an apocalyptic number.

11015540042 is a deficient number, since it is larger than the sum of its proper divisors (6778793914).

11015540042 is a wasteful number, since it uses less digits than its factorization.

11015540042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423674632.

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 11015540042 in words is "eleven billion, fifteen million, five hundred forty thousand, forty-two".