16699530737 has 2 divisors, whose sum is σ = 16699530738. Its totient is φ = 16699530736.

The previous prime is 16699530721. The next prime is 16699530773. The reversal of 16699530737 is 73703599661.

It is a happy number.

Together with next prime (16699530773) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10671716416 + 6027814321 = 103304^2 + 77639^2 .

It is an emirp because it is prime and its reverse (73703599661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16699530737 - 2⁴ = 16699530721 is a prime.

It is not a weakly prime, because it can be changed into another prime (16699530137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8349765368 + 8349765369.

It is an arithmetic number, because the mean of its divisors is an integer number (8349765369).

Almost surely, 2^16699530737 is an apocalyptic number.

It is an amenable number.

16699530737 is a deficient number, since it is larger than the sum of its proper divisors (1).

16699530737 is an equidigital number, since it uses as much as digits as its factorization.

16699530737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6429780, while the sum is 56.

The spelling of 16699530737 in words is "sixteen billion, six hundred ninety-nine million, five hundred thirty thousand, seven hundred thirty-seven".