16109386639 has 8 divisors (see below), whose sum is σ = 16666391520. Its totient is φ = 15552482400.

The previous prime is 16109386633. The next prime is 16109386663. The reversal of 16109386639 is 93668390161.

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 16109386639 - 2¹³ = 16109378447 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 (16109386633) 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, 458094 + ... + 492004.

It is an arithmetic number, because the mean of its divisors is an integer number (2083298940).

Almost surely, 2^16109386639 is an apocalyptic number.

16109386639 is a deficient number, since it is larger than the sum of its proper divisors (557004881).

16109386639 is a wasteful number, since it uses less digits than its factorization.

16109386639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50321.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 16109386639 in words is "sixteen billion, one hundred nine million, three hundred eighty-six thousand, six hundred thirty-nine".