16142561075520 has 336 divisors, whose sum is σ = 61013434292928. Its totient is φ = 3884782510080.

The previous prime is 16142561075507. The next prime is 16142561075573. The reversal of 16142561075520 is 2557016524161.

16142561075520 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 2 + 5 + 610 + 7 + 5 + 5 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2480487 + ... + 6199833.

Almost surely, 2^{16142561075520} is an apocalyptic number.

16142561075520 is a gapful number since it is divisible by the number (10) 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 16142561075520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30506717146464).

16142561075520 is an abundant number, since it is smaller than the sum of its proper divisors (44870873217408).

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

16142561075520 is a wasteful number, since it uses less digits than its factorization.

16142561075520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719518 (or 3719505 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

Adding to 16142561075520 its reverse (2557016524161), we get a palindrome (18699577599681).

The spelling of 16142561075520 in words is "sixteen trillion, one hundred forty-two billion, five hundred sixty-one million, seventy-five thousand, five hundred twenty".