11816459345 has 8 divisors (see below), whose sum is σ = 14210781864. Its totient is φ = 9432480384.

The previous prime is 11816459321. The next prime is 11816459353. The reversal of 11816459345 is 54395461811.

It can be written as a sum of positive squares in 4 ways, for example, as 1786837441 + 10029621904 = 42271^2 + 100148^2 .

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 11816459345 - 2¹² = 11816455249 is a prime.

It is a super-2 number, since 2×11816459345² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11816459345.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2583374 + ... + 2587943.

It is an arithmetic number, because the mean of its divisors is an integer number (1776347733).

Almost surely, 2^11816459345 is an apocalyptic number.

It is an amenable number.

11816459345 is a deficient number, since it is larger than the sum of its proper divisors (2394322519).

11816459345 is an equidigital number, since it uses as much as digits as its factorization.

11816459345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171779.

The product of its digits is 518400, while the sum is 47.

The spelling of 11816459345 in words is "eleven billion, eight hundred sixteen million, four hundred fifty-nine thousand, three hundred forty-five".