16700334997 has 2 divisors, whose sum is σ = 16700334998. Its totient is φ = 16700334996.

The previous prime is 16700334991. The next prime is 16700335031. The reversal of 16700334997 is 79943300761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15166907716 + 1533427281 = 123154^2 + 39159^2 .

It is an emirp because it is prime and its reverse (79943300761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16700334997 - 2¹¹ = 16700332949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16700334997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16700334991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8350167498 + 8350167499.

It is an arithmetic number, because the mean of its divisors is an integer number (8350167499).

Almost surely, 2^16700334997 is an apocalyptic number.

It is an amenable number.

16700334997 is a deficient number, since it is larger than the sum of its proper divisors (1).

16700334997 is an equidigital number, since it uses as much as digits as its factorization.

16700334997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 16700334997 in words is "sixteen billion, seven hundred million, three hundred thirty-four thousand, nine hundred ninety-seven".