16625640589 has 8 divisors (see below), whose sum is σ = 17034216192. Its totient is φ = 16217211360.

The previous prime is 16625640587. The next prime is 16625640607. The reversal of 16625640589 is 98504652661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16625640589 - 2¹ = 16625640587 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 (16625640587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214212 + ... + 281314.

It is an arithmetic number, because the mean of its divisors is an integer number (2129277024).

Almost surely, 2^16625640589 is an apocalyptic number.

It is an amenable number.

16625640589 is a deficient number, since it is larger than the sum of its proper divisors (408575603).

16625640589 is an equidigital number, since it uses as much as digits as its factorization.

16625640589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73187.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 16625640589 in words is "sixteen billion, six hundred twenty-five million, six hundred forty thousand, five hundred eighty-nine".