11512361611 has 8 divisors (see below), whose sum is σ = 12122169920. Its totient is φ = 10902942792.

The previous prime is 11512361591. The next prime is 11512361621. The reversal of 11512361611 is 11616321511.

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 11512361611 - 2¹⁷ = 11512230539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11512361611.

It is not an unprimeable number, because it can be changed into a prime (11512361621) 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, 35685 + ... + 155878.

It is an arithmetic number, because the mean of its divisors is an integer number (1515271240).

Almost surely, 2^11512361611 is an apocalyptic number.

11512361611 is a deficient number, since it is larger than the sum of its proper divisors (609808309).

11512361611 is a wasteful number, since it uses less digits than its factorization.

11512361611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194745.

The product of its digits is 1080, while the sum is 28.

The spelling of 11512361611 in words is "eleven billion, five hundred twelve million, three hundred sixty-one thousand, six hundred eleven".