40245020505544 has 16 divisors (see below), whose sum is σ = 79430961524400. Its totient is φ = 19063430765712.

The previous prime is 40245020505527. The next prime is 40245020505587. The reversal of 40245020505544 is 44550502054204.

It is a junction number, because it is equal to n+sod(n) for n = 40245020505497 and 40245020505506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132384935722 + ... + 132384936025.

It is an arithmetic number, because the mean of its divisors is an integer number (4964435095275).

Almost surely, 2^{40245020505544} is an apocalyptic number.

It is an amenable number.

40245020505544 is a deficient number, since it is larger than the sum of its proper divisors (39185941018856).

40245020505544 is a wasteful number, since it uses less digits than its factorization.

40245020505544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264769871772 (or 264769871768 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 40.

Adding to 40245020505544 its reverse (44550502054204), we get a palindrome (84795522559748).

The spelling of 40245020505544 in words is "forty trillion, two hundred forty-five billion, twenty million, five hundred five thousand, five hundred forty-four".