16565010157 has 2 divisors, whose sum is σ = 16565010158. Its totient is φ = 16565010156.

The previous prime is 16565010109. The next prime is 16565010169. The reversal of 16565010157 is 75101056561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16064548516 + 500461641 = 126746^2 + 22371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16565010157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16565010257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282505078 + 8282505079.

It is an arithmetic number, because the mean of its divisors is an integer number (8282505079).

Almost surely, 2^16565010157 is an apocalyptic number.

It is an amenable number.

16565010157 is a deficient number, since it is larger than the sum of its proper divisors (1).

16565010157 is an equidigital number, since it uses as much as digits as its factorization.

16565010157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 16565010157 in words is "sixteen billion, five hundred sixty-five million, ten thousand, one hundred fifty-seven".