16589180394 has 24 divisors (see below), whose sum is σ = 35951912100. Its totient is φ = 5528390208.

The previous prime is 16589180393. The next prime is 16589180401. The reversal of 16589180394 is 49308198561.

16589180394 is a `hidden beast` number, since 16 + 589 + 18 + 0 + 39 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16421141025 + 168039369 = 128145^2 + 12963^2 .

It is a super-2 number, since 2×16589180394² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16589180394.

It is not an unprimeable number, because it can be changed into a prime (16589180393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33369 + ... + 185180.

Almost surely, 2^16589180394 is an apocalyptic number.

16589180394 is an abundant number, since it is smaller than the sum of its proper divisors (19362731706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16589180394 is a wasteful number, since it uses less digits than its factorization.

16589180394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222774 (or 222771 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 16589180394 in words is "sixteen billion, five hundred eighty-nine million, one hundred eighty thousand, three hundred ninety-four".