16725236385 has 32 divisors (see below), whose sum is σ = 31438770048. Its totient is φ = 7485419520.

The previous prime is 16725236321. The next prime is 16725236413. The reversal of 16725236385 is 58363252761.

It is a happy number.

It is not a de Polignac number, because 16725236385 - 2⁶ = 16725236321 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3896512 + ... + 3900801.

It is an arithmetic number, because the mean of its divisors is an integer number (982461564).

Almost surely, 2^16725236385 is an apocalyptic number.

16725236385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16725236385 is a deficient number, since it is larger than the sum of its proper divisors (14713533663).

16725236385 is a wasteful number, since it uses less digits than its factorization.

16725236385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7797345.

The product of its digits is 1814400, while the sum is 48.

The spelling of 16725236385 in words is "sixteen billion, seven hundred twenty-five million, two hundred thirty-six thousand, three hundred eighty-five".