16025398507 has 4 divisors (see below), whose sum is σ = 16025653296. Its totient is φ = 16025143720.

The previous prime is 16025398489. The next prime is 16025398531. The reversal of 16025398507 is 70589352061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70589352061 = 751 ⋅93993811.

It is a cyclic number.

It is not a de Polignac number, because 16025398507 - 2¹⁹ = 16024874219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16025398547) 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 3 ways as a sum of consecutive naturals, for example, 42282 + ... + 183952.

It is an arithmetic number, because the mean of its divisors is an integer number (4006413324).

Almost surely, 2^16025398507 is an apocalyptic number.

16025398507 is a deficient number, since it is larger than the sum of its proper divisors (254789).

16025398507 is a wasteful number, since it uses less digits than its factorization.

16025398507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254788.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 16025398507 in words is "sixteen billion, twenty-five million, three hundred ninety-eight thousand, five hundred seven".