105442440512 has 14 divisors (see below), whose sum is σ = 209237343018. Its totient is φ = 52721220224.

The previous prime is 105442440491. The next prime is 105442440529. The reversal of 105442440512 is 215044244501.

It can be written as a sum of positive squares in only one way, i.e., 96338227456 + 9104213056 = 310384^2 + 95416^2 .

It is a super-2 number, since 2×105442440512² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 823769003 + ... + 823769130.

Almost surely, 2^105442440512 is an apocalyptic number.

It is an amenable number.

105442440512 is a deficient number, since it is larger than the sum of its proper divisors (103794902506).

105442440512 is an equidigital number, since it uses as much as digits as its factorization.

105442440512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647538145 (or 1647538135 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 105442440512 in words is "one hundred five billion, four hundred forty-two million, four hundred forty thousand, five hundred twelve".