1081154016 has 144 divisors (see below), whose sum is σ = 3214149120. Its totient is φ = 344321280.

The previous prime is 1081154003. The next prime is 1081154027. The reversal of 1081154016 is 6104511801.

1081154016 is a `hidden beast` number, since 108 + 1 + 1 + 540 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 740295 + ... + 741753.

It is an arithmetic number, because the mean of its divisors is an integer number (22320480).

Almost surely, 2^1081154016 is an apocalyptic number.

1081154016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1081154016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1607074560).

1081154016 is an abundant number, since it is smaller than the sum of its proper divisors (2132995104).

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

1081154016 is a wasteful number, since it uses less digits than its factorization.

1081154016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1081154016 is about 32880.9065568454. The cubic root of 1081154016 is about 1026.3508711837.

Adding to 1081154016 its reverse (6104511801), we get a palindrome (7185665817).

The spelling of 1081154016 in words is "one billion, eighty-one million, one hundred fifty-four thousand, sixteen".