11360316561 has 32 divisors (see below), whose sum is σ = 17609453568. Its totient is φ = 6445549440.

The previous prime is 11360316553. The next prime is 11360316577. The reversal of 11360316561 is 16561306311.

It is not a de Polignac number, because 11360316561 - 2³ = 11360316553 is a prime.

It is a super-2 number, since 2×11360316561² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11360316551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123556 + ... + 194901.

It is an arithmetic number, because the mean of its divisors is an integer number (550295424).

Almost surely, 2^11360316561 is an apocalyptic number.

11360316561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11360316561 is a deficient number, since it is larger than the sum of its proper divisors (6249137007).

11360316561 is a wasteful number, since it uses less digits than its factorization.

11360316561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318541.

The product of its (nonzero) digits is 9720, while the sum is 33.

The spelling of 11360316561 in words is "eleven billion, three hundred sixty million, three hundred sixteen thousand, five hundred sixty-one".