1145455213344 has 384 divisors, whose sum is σ = 3487512672000. Its totient is φ = 326059819008.

The previous prime is 1145455213339. The next prime is 1145455213387. The reversal of 1145455213344 is 4433125545411.

It is a junction number, because it is equal to n+sod(n) for n = 1145455213296 and 1145455213305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 337990402 + ... + 337993790.

It is an arithmetic number, because the mean of its divisors is an integer number (9082064250).

Almost surely, 2^{1145455213344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145455213344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1743756336000).

1145455213344 is an abundant number, since it is smaller than the sum of its proper divisors (2342057458656).

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

1145455213344 is a wasteful number, since it uses less digits than its factorization.

1145455213344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700 (or 3692 counting only the distinct ones).

The product of its digits is 576000, while the sum is 42.

The spelling of 1145455213344 in words is "one trillion, one hundred forty-five billion, four hundred fifty-five million, two hundred thirteen thousand, three hundred forty-four".