12352054554056 has 128 divisors (see below), whose sum is σ = 28070332012800. Its totient is φ = 4977678458880.

The previous prime is 12352054553983. The next prime is 12352054554089. The reversal of 12352054554056 is 65045545025321.

It is a super-2 number, since 2×12352054554056² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12352054554056.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109098116 + ... + 109211276.

It is an arithmetic number, because the mean of its divisors is an integer number (219299468850).

Almost surely, 2^{12352054554056} 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 12352054554056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14035166006400).

12352054554056 is an abundant number, since it is smaller than the sum of its proper divisors (15718277458744).

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

12352054554056 is a wasteful number, since it uses less digits than its factorization.

12352054554056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113959 (or 113955 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 47.

Adding to 12352054554056 its reverse (65045545025321), we get a palindrome (77397599579377).

The spelling of 12352054554056 in words is "twelve trillion, three hundred fifty-two billion, fifty-four million, five hundred fifty-four thousand, fifty-six".