17216562157 has 2 divisors, whose sum is σ = 17216562158. Its totient is φ = 17216562156.

The previous prime is 17216562137. The next prime is 17216562199. The reversal of 17216562157 is 75126561271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15313072516 + 1903489641 = 123746^2 + 43629^2 .

It is a cyclic number.

It is not a de Polignac number, because 17216562157 - 2¹⁵ = 17216529389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17216562127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8608281078 + 8608281079.

It is an arithmetic number, because the mean of its divisors is an integer number (8608281079).

Almost surely, 2^17216562157 is an apocalyptic number.

It is an amenable number.

17216562157 is a deficient number, since it is larger than the sum of its proper divisors (1).

17216562157 is an equidigital number, since it uses as much as digits as its factorization.

17216562157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 43.

The spelling of 17216562157 in words is "seventeen billion, two hundred sixteen million, five hundred sixty-two thousand, one hundred fifty-seven".