11560101000661 has 4 divisors (see below), whose sum is σ = 11574390372300. Its totient is φ = 11545811629024.

The previous prime is 11560101000653. The next prime is 11560101000667. The reversal of 11560101000661 is 16600010106511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5003587396900 + 6556513603761 = 2236870^2 + 2560569^2 .

It is a cyclic number.

It is not a de Polignac number, because 11560101000661 - 2³ = 11560101000653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11560101000667) 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, 7144684606 + ... + 7144686223.

It is an arithmetic number, because the mean of its divisors is an integer number (2893597593075).

Almost surely, 2^{11560101000661} is an apocalyptic number.

It is an amenable number.

11560101000661 is a deficient number, since it is larger than the sum of its proper divisors (14289371639).

11560101000661 is an equidigital number, since it uses as much as digits as its factorization.

11560101000661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14289371638.

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

The spelling of 11560101000661 in words is "eleven trillion, five hundred sixty billion, one hundred one million, six hundred sixty-one", and thus it is an aban number.