11610356409 has 6 divisors (see below), whose sum is σ = 16770514826. Its totient is φ = 7740237600.

The previous prime is 11610356389. The next prime is 11610356447. The reversal of 11610356409 is 90465301611.

11610356409 is a `hidden beast` number, since 1 + 1 + 6 + 1 + 0 + 3 + 5 + 640 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6295946409 + 5314410000 = 79347^2 + 72900^2 .

It is not a de Polignac number, because 11610356409 - 2¹⁶ = 11610290873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11610356489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645019792 + ... + 645019809.

Almost surely, 2^11610356409 is an apocalyptic number.

It is an amenable number.

11610356409 is a deficient number, since it is larger than the sum of its proper divisors (5160158417).

11610356409 is a wasteful number, since it uses less digits than its factorization.

11610356409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290039607 (or 1290039604 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 11610356409 in words is "eleven billion, six hundred ten million, three hundred fifty-six thousand, four hundred nine".