11601616543 has 8 divisors (see below), whose sum is σ = 13322430720. Its totient is φ = 9991822680.

The previous prime is 11601616529. The next prime is 11601616567. The reversal of 11601616543 is 34561610611.

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 11601616543 - 2¹³ = 11601608351 is a prime.

It is a super-2 number, since 2×11601616543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11601616499 and 11601616508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11601616583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27754855 + ... + 27755272.

It is an arithmetic number, because the mean of its divisors is an integer number (1665303840).

Almost surely, 2^11601616543 is an apocalyptic number.

11601616543 is a deficient number, since it is larger than the sum of its proper divisors (1720814177).

11601616543 is a wasteful number, since it uses less digits than its factorization.

11601616543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55510157.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 11601616543 in words is "eleven billion, six hundred one million, six hundred sixteen thousand, five hundred forty-three".