16860518369 has 8 divisors (see below), whose sum is σ = 17138859360. Its totient is φ = 16584310656.

The previous prime is 16860518347. The next prime is 16860518387. The reversal of 16860518369 is 96381506861.

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 16860518369 - 2¹² = 16860514273 is a prime.

It is a super-2 number, since 2×16860518369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16860518369.

It is not an unprimeable number, because it can be changed into a prime (16860518329) 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, 517379 + ... + 549000.

It is an arithmetic number, because the mean of its divisors is an integer number (2142357420).

Almost surely, 2^16860518369 is an apocalyptic number.

It is an amenable number.

16860518369 is a deficient number, since it is larger than the sum of its proper divisors (278340991).

16860518369 is a wasteful number, since it uses less digits than its factorization.

16860518369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066639.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 16860518369 in words is "sixteen billion, eight hundred sixty million, five hundred eighteen thousand, three hundred sixty-nine".