16309925087 has 4 divisors (see below), whose sum is σ = 16313190120. Its totient is φ = 16306660056.

The previous prime is 16309925083. The next prime is 16309925143. The reversal of 16309925087 is 78052990361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16309925087 - 2² = 16309925083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16309925083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625012 + ... + 1635017.

It is an arithmetic number, because the mean of its divisors is an integer number (4078297530).

Almost surely, 2^16309925087 is an apocalyptic number.

16309925087 is a deficient number, since it is larger than the sum of its proper divisors (3265033).

16309925087 is an equidigital number, since it uses as much as digits as its factorization.

16309925087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265032.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 16309925087 in words is "sixteen billion, three hundred nine million, nine hundred twenty-five thousand, eighty-seven".