1081796688544 has 192 divisors, whose sum is σ = 2544222223872. Its totient is φ = 446290099200.

The previous prime is 1081796688541. The next prime is 1081796688547. The reversal of 1081796688544 is 4458866971801.

It is an interprime number because it is at equal distance from previous prime (1081796688541) and next prime (1081796688547).

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a self number, because there is not a number n which added to its sum of digits gives 1081796688544.

It is not an unprimeable number, because it can be changed into a prime (1081796688541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179966499 + ... + 179972509.

It is an arithmetic number, because the mean of its divisors is an integer number (13251157416).

Almost surely, 2^{1081796688544} 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 1081796688544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272111111936).

1081796688544 is an abundant number, since it is smaller than the sum of its proper divisors (1462425535328).

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

1081796688544 is a wasteful number, since it uses less digits than its factorization.

1081796688544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699 (or 6691 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 67.

The spelling of 1081796688544 in words is "one trillion, eighty-one billion, seven hundred ninety-six million, six hundred eighty-eight thousand, five hundred forty-four".