2016000645 has 8 divisors (see below), whose sum is σ = 3225601056. Its totient is φ = 1075200336.

The previous prime is 2016000601. The next prime is 2016000653. The reversal of 2016000645 is 5460006102.

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

It is not a de Polignac number, because 2016000645 - 2¹⁷ = 2015869573 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67200007 + ... + 67200036.

It is an arithmetic number, because the mean of its divisors is an integer number (403200132).

Almost surely, 2^2016000645 is an apocalyptic number.

It is an amenable number.

2016000645 is a deficient number, since it is larger than the sum of its proper divisors (1209600411).

2016000645 is a wasteful number, since it uses less digits than its factorization.

2016000645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134400051.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2016000645 is about 44899.8958239326. The cubic root of 2016000645 is about 1263.2720542552.

Adding to 2016000645 its reverse (5460006102), we get a palindrome (7476006747).

The spelling of 2016000645 in words is "two billion, sixteen million, six hundred forty-five", and thus it is an aban number.