11316140561 has 32 divisors (see below), whose sum is σ = 12732577920. Its totient is φ = 9970444800.

The previous prime is 11316140557. The next prime is 11316140573. The reversal of 11316140561 is 16504161311.

It is a cyclic number.

It is not a de Polignac number, because 11316140561 - 2² = 11316140557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11316140551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19887485 + ... + 19888053.

It is an arithmetic number, because the mean of its divisors is an integer number (397893060).

Almost surely, 2^11316140561 is an apocalyptic number.

11316140561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11316140561 is a deficient number, since it is larger than the sum of its proper divisors (1416437359).

11316140561 is a wasteful number, since it uses less digits than its factorization.

11316140561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 11316140561 in words is "eleven billion, three hundred sixteen million, one hundred forty thousand, five hundred sixty-one".