11057072018 has 8 divisors (see below), whose sum is σ = 16586249148. Its totient is φ = 5528322304.

The previous prime is 11057072011. The next prime is 11057072029. The reversal of 11057072018 is 81027075011.

It can be written as a sum of positive squares in 2 ways, for example, as 10448315089 + 608756929 = 102217^2 + 24673^2 .

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

It is a super-2 number, since 2×11057072018² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11057072011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31571 + ... + 152022.

Almost surely, 2^11057072018 is an apocalyptic number.

11057072018 is a deficient number, since it is larger than the sum of its proper divisors (5529177130).

11057072018 is a wasteful number, since it uses less digits than its factorization.

11057072018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213708.

The product of its (nonzero) digits is 3920, while the sum is 32.

The spelling of 11057072018 in words is "eleven billion, fifty-seven million, seventy-two thousand, eighteen".