16305129002500 has 60 divisors (see below), whose sum is σ = 38398829725564. Its totient is φ = 6020355312000.

The previous prime is 16305129002489. The next prime is 16305129002501. The reversal of 16305129002500 is 520092150361.

It can be written as a sum of positive squares in 10 ways, for example, as 10299580815616 + 6005548186884 = 3209296^2 + 2450622^2 .

It is not an unprimeable number, because it can be changed into a prime (16305129002501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 250815639 + ... + 250880638.

Almost surely, 2^{16305129002500} is an apocalyptic number.

16305129002500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16305129002500 is an abundant number, since it is smaller than the sum of its proper divisors (22093700723064).

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

16305129002500 is a wasteful number, since it uses less digits than its factorization.

16305129002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501696314 (or 501696297 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 16305129002500 in words is "sixteen trillion, three hundred five billion, one hundred twenty-nine million, two thousand, five hundred".