1065340319544 has 160 divisors (see below), whose sum is σ = 3136409385120. Its totient is φ = 337193708544.

The previous prime is 1065340319513. The next prime is 1065340319569. The reversal of 1065340319544 is 4459130435601.

1065340319544 is a `hidden beast` number, since 1 + 0 + 6 + 53 + 40 + 3 + 19 + 544 = 666.

It is a super-2 number, since 2×1065340319544² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065340319544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1780972 + ... + 2302724.

It is an arithmetic number, because the mean of its divisors is an integer number (19602558657).

Almost surely, 2^{1065340319544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065340319544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568204692560).

1065340319544 is an abundant number, since it is smaller than the sum of its proper divisors (2071069065576).

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

1065340319544 is a wasteful number, since it uses less digits than its factorization.

1065340319544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521931 (or 521918 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 1065340319544 in words is "one trillion, sixty-five billion, three hundred forty million, three hundred nineteen thousand, five hundred forty-four".