16025559361389 has 10 divisors (see below), whose sum is σ = 23939415836270. Its totient is φ = 10683706240872.

The previous prime is 16025559361369. The next prime is 16025559361403. The reversal of 16025559361389 is 98316395552061.

It is a happy number.

16025559361389 is a `hidden beast` number, since 1 + 6 + 0 + 2 + 5 + 5 + 5 + 9 + 3 + 613 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13393513881225 + 2632045480164 = 3659715^2 + 1622358^2 .

It is not a de Polignac number, because 16025559361389 - 2²¹ = 16025557264237 is a prime.

It is a super-2 number, since 2×16025559361389² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16025559361369) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 98923205854 + ... + 98923206015.

It is an arithmetic number, because the mean of its divisors is an integer number (2393941583627).

Almost surely, 2^{16025559361389} is an apocalyptic number.

It is an amenable number.

16025559361389 is a deficient number, since it is larger than the sum of its proper divisors (7913856474881).

16025559361389 is an equidigital number, since it uses as much as digits as its factorization.

16025559361389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197846411881 (or 197846411872 counting only the distinct ones).

The product of its (nonzero) digits is 52488000, while the sum is 63.

The spelling of 16025559361389 in words is "sixteen trillion, twenty-five billion, five hundred fifty-nine million, three hundred sixty-one thousand, three hundred eighty-nine".