16723711157 has 2 divisors, whose sum is σ = 16723711158. Its totient is φ = 16723711156.

The previous prime is 16723711111. The next prime is 16723711183. The reversal of 16723711157 is 75111732761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14313490321 + 2410220836 = 119639^2 + 49094^2 .

It is a cyclic number.

It is not a de Polignac number, because 16723711157 - 2²⁸ = 16455275701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16723711057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361855578 + 8361855579.

It is an arithmetic number, because the mean of its divisors is an integer number (8361855579).

Almost surely, 2^16723711157 is an apocalyptic number.

It is an amenable number.

16723711157 is a deficient number, since it is larger than the sum of its proper divisors (1).

16723711157 is an equidigital number, since it uses as much as digits as its factorization.

16723711157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 41.

The spelling of 16723711157 in words is "sixteen billion, seven hundred twenty-three million, seven hundred eleven thousand, one hundred fifty-seven".