4521554145312 has 96 divisors (see below), whose sum is σ = 12146441186880. Its totient is φ = 1471971916800.

The previous prime is 4521554145287. The next prime is 4521554145319. The reversal of 4521554145312 is 2135414551254.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (4521554145319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40816014 + ... + 40926642.

It is an arithmetic number, because the mean of its divisors is an integer number (126525429030).

Almost surely, 2^{4521554145312} 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 4521554145312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6073220593440).

4521554145312 is an abundant number, since it is smaller than the sum of its proper divisors (7624887041568).

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

4521554145312 is a wasteful number, since it uses less digits than its factorization.

4521554145312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120586 (or 120578 counting only the distinct ones).

The product of its digits is 480000, while the sum is 42.

Adding to 4521554145312 its reverse (2135414551254), we get a palindrome (6656968696566).

The spelling of 4521554145312 in words is "four trillion, five hundred twenty-one billion, five hundred fifty-four million, one hundred forty-five thousand, three hundred twelve".