105444025540 has 96 divisors (see below), whose sum is σ = 256036677120. Its totient is φ = 35730146304.

The previous prime is 105444025523. The next prime is 105444025543. The reversal of 105444025540 is 45520444501.

It is a super-2 number, since 2×105444025540² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105444025496 and 105444025505.

It is not an unprimeable number, because it can be changed into a prime (105444025543) 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, 4380217 + ... + 4404223.

It is an arithmetic number, because the mean of its divisors is an integer number (2667048720).

Almost surely, 2^105444025540 is an apocalyptic number.

105444025540 is a gapful number since it is divisible by the number (10) 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 105444025540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128018338560).

105444025540 is an abundant number, since it is smaller than the sum of its proper divisors (150592651580).

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

105444025540 is a wasteful number, since it uses less digits than its factorization.

105444025540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24389 (or 24387 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

The spelling of 105444025540 in words is "one hundred five billion, four hundred forty-four million, twenty-five thousand, five hundred forty".