2016815693 has 2 divisors, whose sum is σ = 2016815694. Its totient is φ = 2016815692.

The previous prime is 2016815687. The next prime is 2016815711. The reversal of 2016815693 is 3965186102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1697192809 + 319622884 = 41197^2 + 17878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2016815693 - 2⁴ = 2016815677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2016815693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2016815653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008407846 + 1008407847.

It is an arithmetic number, because the mean of its divisors is an integer number (1008407847).

Almost surely, 2^2016815693 is an apocalyptic number.

It is an amenable number.

2016815693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016815693 is an equidigital number, since it uses as much as digits as its factorization.

2016815693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2016815693 is about 44908.9711861672. The cubic root of 2016815693 is about 1263.4422738827.

The spelling of 2016815693 in words is "two billion, sixteen million, eight hundred fifteen thousand, six hundred ninety-three".