11155795493 has 4 divisors (see below), whose sum is σ = 11427888108. Its totient is φ = 10883702880.

The previous prime is 11155795481. The next prime is 11155795517. The reversal of 11155795493 is 39459755111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2371982209 + 8783813284 = 48703^2 + 93722^2 .

It is a cyclic number.

It is not a de Polignac number, because 11155795493 - 2⁴ = 11155795477 is a prime.

It is a super-2 number, since 2×11155795493² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155795093) 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, 136046246 + ... + 136046327.

It is an arithmetic number, because the mean of its divisors is an integer number (2856972027).

Almost surely, 2^11155795493 is an apocalyptic number.

It is an amenable number.

11155795493 is a deficient number, since it is larger than the sum of its proper divisors (272092615).

11155795493 is an equidigital number, since it uses as much as digits as its factorization.

11155795493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272092614.

The product of its digits is 850500, while the sum is 50.

The spelling of 11155795493 in words is "eleven billion, one hundred fifty-five million, seven hundred ninety-five thousand, four hundred ninety-three".