11536085661 has 8 divisors (see below), whose sum is σ = 15611021664. Its totient is φ = 7575936720.

The previous prime is 11536085611. The next prime is 11536085669. The reversal of 11536085661 is 16658063511.

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

It is not a de Polignac number, because 11536085661 - 2¹⁸ = 11535823517 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11536085669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28696530 + ... + 28696931.

It is an arithmetic number, because the mean of its divisors is an integer number (1951377708).

Almost surely, 2^11536085661 is an apocalyptic number.

It is an amenable number.

11536085661 is a deficient number, since it is larger than the sum of its proper divisors (4074936003).

11536085661 is an equidigital number, since it uses as much as digits as its factorization.

11536085661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57393531.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 11536085661 in words is "eleven billion, five hundred thirty-six million, eighty-five thousand, six hundred sixty-one".