11081773258 has 4 divisors (see below), whose sum is σ = 16622659890. Its totient is φ = 5540886628.

The previous prime is 11081773253. The next prime is 11081773271. The reversal of 11081773258 is 85237718011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85237718011 = 3229 ⋅26397559.

It can be written as a sum of positive squares in only one way, i.e., 6120402289 + 4961370969 = 78233^2 + 70437^2 .

It is not an unprimeable number, because it can be changed into a prime (11081773253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770443313 + ... + 2770443316.

Almost surely, 2^11081773258 is an apocalyptic number.

11081773258 is a deficient number, since it is larger than the sum of its proper divisors (5540886632).

11081773258 is an equidigital number, since it uses as much as digits as its factorization.

11081773258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540886631.

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 11081773258 in words is "eleven billion, eighty-one million, seven hundred seventy-three thousand, two hundred fifty-eight".