16740439097 has 2 divisors, whose sum is σ = 16740439098. Its totient is φ = 16740439096.

The previous prime is 16740439057. The next prime is 16740439099. The reversal of 16740439097 is 79093404761.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11214598201 + 5525840896 = 105899^2 + 74336^2 .

It is a cyclic number.

It is not a de Polignac number, because 16740439097 - 2¹² = 16740435001 is a prime.

Together with 16740439099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16740439099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8370219548 + 8370219549.

It is an arithmetic number, because the mean of its divisors is an integer number (8370219549).

Almost surely, 2^16740439097 is an apocalyptic number.

It is an amenable number.

16740439097 is a deficient number, since it is larger than the sum of its proper divisors (1).

16740439097 is an equidigital number, since it uses as much as digits as its factorization.

16740439097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 16740439097 in words is "sixteen billion, seven hundred forty million, four hundred thirty-nine thousand, ninety-seven".