11560101564991 has 4 divisors (see below), whose sum is σ = 13211544645712. Its totient is φ = 9908658484272.

The previous prime is 11560101564989. The next prime is 11560101565009. The reversal of 11560101564991 is 19946510106511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11560101564991 - 2¹ = 11560101564989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11560101564961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825721540350 + ... + 825721540363.

It is an arithmetic number, because the mean of its divisors is an integer number (3302886161428).

Almost surely, 2^{11560101564991} is an apocalyptic number.

11560101564991 is a deficient number, since it is larger than the sum of its proper divisors (1651443080721).

11560101564991 is an equidigital number, since it uses as much as digits as its factorization.

11560101564991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651443080720.

The product of its (nonzero) digits is 291600, while the sum is 49.

The spelling of 11560101564991 in words is "eleven trillion, five hundred sixty billion, one hundred one million, five hundred sixty-four thousand, nine hundred ninety-one".