1545104559856 has 160 divisors (see below), whose sum is σ = 3821535406080. Its totient is φ = 594362188800.

The previous prime is 1545104559853. The next prime is 1545104559893. The reversal of 1545104559856 is 6589554015451.

It is a self number, because there is not a number n which added to its sum of digits gives 1545104559856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545104559851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 774366 + ... + 1920898.

It is an arithmetic number, because the mean of its divisors is an integer number (23884596288).

Almost surely, 2^{1545104559856} is an apocalyptic number.

1545104559856 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 1545104559856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910767703040).

1545104559856 is an abundant number, since it is smaller than the sum of its proper divisors (2276430846224).

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

1545104559856 is a wasteful number, since it uses less digits than its factorization.

1545104559856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146615 (or 1146609 counting only the distinct ones).

The product of its (nonzero) digits is 21600000, while the sum is 58.

The spelling of 1545104559856 in words is "one trillion, five hundred forty-five billion, one hundred four million, five hundred fifty-nine thousand, eight hundred fifty-six".