15728656230144 has 1620 divisors, whose sum is σ = 56385645825600. Its totient is φ = 4209861427200.

The previous prime is 15728656230127. The next prime is 15728656230167. The reversal of 15728656230144 is 44103265682751.

15728656230144 is a `hidden beast` number, since 1 + 5 + 7 + 2 + 8 + 6 + 5 + 623 + 0 + 1 + 4 + 4 = 666.

15728656230144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 176726474452 + ... + 176726474540.

Almost surely, 2^{15728656230144} 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 15728656230144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28192822912800).

15728656230144 is an abundant number, since it is smaller than the sum of its proper divisors (40656989595456).

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

15728656230144 is an equidigital number, since it uses as much as digits as its factorization.

15728656230144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 15728656230144 in words is "fifteen trillion, seven hundred twenty-eight billion, six hundred fifty-six million, two hundred thirty thousand, one hundred forty-four".