11665454413144 has 64 divisors (see below), whose sum is σ = 25335858240000. Its totient is φ = 4932045220608.

The previous prime is 11665454413133. The next prime is 11665454413147. The reversal of 11665454413144 is 44131445456611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665454413147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477834 + ... + 4853785.

It is an arithmetic number, because the mean of its divisors is an integer number (395872785000).

Almost surely, 2^{11665454413144} is an apocalyptic number.

11665454413144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11665454413144 is an abundant number, since it is smaller than the sum of its proper divisors (13670403826856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11665454413144 is a wasteful number, since it uses less digits than its factorization.

11665454413144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332160 (or 5332156 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 49.

Adding to 11665454413144 its reverse (44131445456611), we get a palindrome (55796899869755).

The spelling of 11665454413144 in words is "eleven trillion, six hundred sixty-five billion, four hundred fifty-four million, four hundred thirteen thousand, one hundred forty-four".