1145120555244 has 24 divisors (see below), whose sum is σ = 2788119613440. Its totient is φ = 365110901584.

The previous prime is 1145120555197. The next prime is 1145120555279. The reversal of 1145120555244 is 4425550215411.

It is a super-2 number, since 2×1145120555244² (a number of 25 digits) contains 22 as substring.

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, 2074493484 + ... + 2074494035.

It is an arithmetic number, because the mean of its divisors is an integer number (116171650560).

Almost surely, 2^{1145120555244} is an apocalyptic number.

It is an amenable number.

1145120555244 is an abundant number, since it is smaller than the sum of its proper divisors (1642999058196).

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

1145120555244 is a wasteful number, since it uses less digits than its factorization.

1145120555244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148987549 (or 4148987547 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 39.

The spelling of 1145120555244 in words is "one trillion, one hundred forty-five billion, one hundred twenty million, five hundred fifty-five thousand, two hundred forty-four".