11056136405 has 8 divisors (see below), whose sum is σ = 14047796952. Its totient is φ = 8324620288.

The previous prime is 11056136369. The next prime is 11056136417. The reversal of 11056136405 is 50463165011.

It can be written as a sum of positive squares in 4 ways, for example, as 1048334884 + 10007801521 = 32378^2 + 100039^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11056136405 - 2⁶ = 11056136341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65036012 + ... + 65036181.

It is an arithmetic number, because the mean of its divisors is an integer number (1755974619).

Almost surely, 2^11056136405 is an apocalyptic number.

It is an amenable number.

11056136405 is a deficient number, since it is larger than the sum of its proper divisors (2991660547).

11056136405 is a wasteful number, since it uses less digits than its factorization.

11056136405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130072215.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 11056136405 in words is "eleven billion, fifty-six million, one hundred thirty-six thousand, four hundred five".