1440320245552 has 20 divisors (see below), whose sum is σ = 2855518627720. Its totient is φ = 703412212608.

The previous prime is 1440320245549. The next prime is 1440320245577. The reversal of 1440320245552 is 2555420230441.

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, 1046743677 + ... + 1046745052.

It is an arithmetic number, because the mean of its divisors is an integer number (142775931386).

Almost surely, 2^{1440320245552} is an apocalyptic number.

It is an amenable number.

1440320245552 is a deficient number, since it is larger than the sum of its proper divisors (1415198382168).

1440320245552 is a wasteful number, since it uses less digits than its factorization.

1440320245552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093488780 (or 2093488774 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 1440320245552 its reverse (2555420230441), we get a palindrome (3995740475993).

The spelling of 1440320245552 in words is "one trillion, four hundred forty billion, three hundred twenty million, two hundred forty-five thousand, five hundred fifty-two".