1054643245056 has 520 divisors, whose sum is σ = 3298758350184. Its totient is φ = 335385722880.

The previous prime is 1054643245049. The next prime is 1054643245067. The reversal of 1054643245056 is 6505423464501.

1054643245056 is a `hidden beast` number, since 1 + 0 + 54 + 64 + 32 + 4 + 505 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 622710374400 + 431932870656 = 789120^2 + 657216^2 .

It is a super-2 number, since 2×1054643245056² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 650611926 + ... + 650613546.

Almost surely, 2^{1054643245056} is an apocalyptic number.

1054643245056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1054643245056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1649379175092).

1054643245056 is an abundant number, since it is smaller than the sum of its proper divisors (2244115105128).

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

1054643245056 is an equidigital number, since it uses as much as digits as its factorization.

1054643245056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 1054643245056 in words is "one trillion, fifty-four billion, six hundred forty-three million, two hundred forty-five thousand, fifty-six".