1113644520544 has 48 divisors (see below), whose sum is σ = 2205016369920. Its totient is φ = 553643146240.

The previous prime is 1113644520529. The next prime is 1113644520607. The reversal of 1113644520544 is 4450254463111.

It is a junction number, because it is equal to n+sod(n) for n = 1113644520497 and 1113644520506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13116822 + ... + 13201450.

It is an arithmetic number, because the mean of its divisors is an integer number (45937841040).

Almost surely, 2^{1113644520544} is an apocalyptic number.

It is an amenable number.

1113644520544 is a deficient number, since it is larger than the sum of its proper divisors (1091371849376).

1113644520544 is a wasteful number, since it uses less digits than its factorization.

1113644520544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86983 (or 86975 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 1113644520544 its reverse (4450254463111), we get a palindrome (5563898983655).

The spelling of 1113644520544 in words is "one trillion, one hundred thirteen billion, six hundred forty-four million, five hundred twenty thousand, five hundred forty-four".