180000016 has 20 divisors (see below), whose sum is σ = 398571712. Its totient is φ = 77142816.

The previous prime is 179999993. The next prime is 180000017. The reversal of 180000016 is 610000081.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (180000017) 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, 803460 + ... + 803683.

Almost surely, 2^180000016 is an apocalyptic number.

180000016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

180000016 is an abundant number, since it is smaller than the sum of its proper divisors (218571696).

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

180000016 is a wasteful number, since it uses less digits than its factorization.

180000016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607158 (or 1607152 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 180000016 is about 13416.4084612835. The cubic root of 180000016 is about 564.6216340581.

Adding to 180000016 its reverse (610000081), we get a palindrome (790000097).

The spelling of 180000016 in words is "one hundred eighty million, sixteen", and thus it is an aban number.