16040025000000 has 945 divisors, whose sum is σ = 60109850571397. Its totient is φ = 4229280000000.

The previous prime is 16040024999891. The next prime is 16040025000047. The reversal of 16040025000000 is 52004061.

It is a happy number.

The square root of 16040025000000 is 4005000.

It is a perfect power (a square), and thus also a powerful number.

16040025000000 is a `hidden beast` number, since 16 + 0 + 400 + 250 + 0 + 0 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 207520335936 + 15832504664064 = 455544^2 + 3979008^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 180224999956 + ... + 180225000044.

Almost surely, 2^{16040025000000} is an apocalyptic number.

16040025000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16040025000000 is the 4005000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16040025000000

16040025000000 is an abundant number, since it is smaller than the sum of its proper divisors (44069825571397).

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

16040025000000 is an frugal number, since it uses more digits than its factorization.

16040025000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 16040025000000 its reverse (52004061), we get a palindrome (16040077004061).

The spelling of 16040025000000 in words is "sixteen trillion, forty billion, twenty-five million", and thus it is an aban number and an uban number.